Home / 656,446.20-984,669.30-213,214.20

Finding the Fourth Proportional to 656,446.20, 984,669.30 and 213,214.20

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Solution

The fourth proportional to 656,446.20, 984,669.30 and 213,214.20 is: 319,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,446.20 : 984,669.30 = 213,214.20 : x
  2. Step 2: Convert to fraction form
    656,446.20/984,669.30 = 213,214.20/x
  3. Step 3: Cross multiply
    656,446.20x = 984,669.30 × 213,214.20
  4. Step 4: Simplify right side
    656,446.20x = 209,945,477,064.06
  5. Step 5: Solve for x
    x = 209,945,477,064.06/656,446.20
  6. Step 6: Final answer
    x = 319,821.30

Related Problems

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Half scale
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Double scale
Find fourth proportional to 656,447.20, 984,670.80 and 213,215.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.