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Finding the Fourth Proportional to 532,787.42, 735,261.10 and 318,052.17

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Solution

The fourth proportional to 532,787.42, 735,261.10 and 318,052.17 is: 438,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,787.42 : 735,261.10 = 318,052.17 : x
  2. Step 2: Convert to fraction form
    532,787.42/735,261.10 = 318,052.17/x
  3. Step 3: Cross multiply
    532,787.42x = 735,261.10 × 318,052.17
  4. Step 4: Simplify right side
    532,787.42x = 233,851,387,576.46
  5. Step 5: Solve for x
    x = 233,851,387,576.46/532,787.42
  6. Step 6: Final answer
    x = 438,920.62

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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.