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Finding the Fourth Proportional to 553,446.46, 763,495.16 and 323,862.92

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Solution

The fourth proportional to 553,446.46, 763,495.16 and 323,862.92 is: 446,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,446.46 : 763,495.16 = 323,862.92 : x
  2. Step 2: Convert to fraction form
    553,446.46/763,495.16 = 323,862.92/x
  3. Step 3: Cross multiply
    553,446.46x = 763,495.16 × 323,862.92
  4. Step 4: Simplify right side
    553,446.46x = 247,267,766,486.68
  5. Step 5: Solve for x
    x = 247,267,766,486.68/553,446.46
  6. Step 6: Final answer
    x = 446,778.12

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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.