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Finding the Fourth Proportional to 531,489.80, 797,234.70 and 508,453.40

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Solution

The fourth proportional to 531,489.80, 797,234.70 and 508,453.40 is: 762,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,489.80 : 797,234.70 = 508,453.40 : x
  2. Step 2: Convert to fraction form
    531,489.80/797,234.70 = 508,453.40/x
  3. Step 3: Cross multiply
    531,489.80x = 797,234.70 × 508,453.40
  4. Step 4: Simplify right side
    531,489.80x = 405,356,693,812.98
  5. Step 5: Solve for x
    x = 405,356,693,812.98/531,489.80
  6. Step 6: Final answer
    x = 762,680.10

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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.