Home / 1,311,192,594.04-1,809,450,483.15-716,477,066.05

Finding the Fourth Proportional to 1,311,192,594.04, 1,809,450,483.15 and 716,477,066.05

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Solution

The fourth proportional to 1,311,192,594.04, 1,809,450,483.15 and 716,477,066.05 is: 988,740,921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,192,594.04 : 1,809,450,483.15 = 716,477,066.05 : x
  2. Step 2: Convert to fraction form
    1,311,192,594.04/1,809,450,483.15 = 716,477,066.05/x
  3. Step 3: Cross multiply
    1,311,192,594.04x = 1,809,450,483.15 × 716,477,066.05
  4. Step 4: Simplify right side
    1,311,192,594.04x = 1,296,429,773,330,066,944
  5. Step 5: Solve for x
    x = 1,296,429,773,330,066,944/1,311,192,594.04
  6. Step 6: Final answer
    x = 988,740,921.22

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Half scale
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Double scale
Find fourth proportional to 1,311,192,595.04, 1,809,450,484.53 and 716,477,067.05
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.