Home / 656,711.52-985,123.20-207,312.24

Finding the Fourth Proportional to 656,711.52, 985,123.20 and 207,312.24

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Solution

The fourth proportional to 656,711.52, 985,123.20 and 207,312.24 is: 310,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,711.52 : 985,123.20 = 207,312.24 : x
  2. Step 2: Convert to fraction form
    656,711.52/985,123.20 = 207,312.24/x
  3. Step 3: Cross multiply
    656,711.52x = 985,123.20 × 207,312.24
  4. Step 4: Simplify right side
    656,711.52x = 204,228,097,267.97
  5. Step 5: Solve for x
    x = 204,228,097,267.97/656,711.52
  6. Step 6: Final answer
    x = 310,986.01

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Double scale
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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.