Home / 898,525.39-1,240,015.58-490,665.19

Finding the Fourth Proportional to 898,525.39, 1,240,015.58 and 490,665.19

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Solution

The fourth proportional to 898,525.39, 1,240,015.58 and 490,665.19 is: 677,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,525.39 : 1,240,015.58 = 490,665.19 : x
  2. Step 2: Convert to fraction form
    898,525.39/1,240,015.58 = 490,665.19/x
  3. Step 3: Cross multiply
    898,525.39x = 1,240,015.58 × 490,665.19
  4. Step 4: Simplify right side
    898,525.39x = 608,432,477,710.33
  5. Step 5: Solve for x
    x = 608,432,477,710.33/898,525.39
  6. Step 6: Final answer
    x = 677,145.56

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Half scale
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Double scale
Find fourth proportional to 898,526.39, 1,240,016.96 and 490,666.19
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.