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Finding the Fourth Proportional to 531,370.42, 797,227.96 and 318,105.12

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Solution

The fourth proportional to 531,370.42, 797,227.96 and 318,105.12 is: 477,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,370.42 : 797,227.96 = 318,105.12 : x
  2. Step 2: Convert to fraction form
    531,370.42/797,227.96 = 318,105.12/x
  3. Step 3: Cross multiply
    531,370.42x = 797,227.96 × 318,105.12
  4. Step 4: Simplify right side
    531,370.42x = 253,602,295,883.16
  5. Step 5: Solve for x
    x = 253,602,295,883.16/531,370.42
  6. Step 6: Final answer
    x = 477,260.85

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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.