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Finding the Fourth Proportional to 522,787.67, 721,402.71 and 293,313.96

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Solution

The fourth proportional to 522,787.67, 721,402.71 and 293,313.96 is: 404,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,787.67 : 721,402.71 = 293,313.96 : x
  2. Step 2: Convert to fraction form
    522,787.67/721,402.71 = 293,313.96/x
  3. Step 3: Cross multiply
    522,787.67x = 721,402.71 × 293,313.96
  4. Step 4: Simplify right side
    522,787.67x = 211,597,484,524.90
  5. Step 5: Solve for x
    x = 211,597,484,524.90/522,787.67
  6. Step 6: Final answer
    x = 404,748.42

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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.