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Finding the Fourth Proportional to 552,652.20, 762,605.69 and 310,929.57

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Solution

The fourth proportional to 552,652.20, 762,605.69 and 310,929.57 is: 429,052.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,652.20 : 762,605.69 = 310,929.57 : x
  2. Step 2: Convert to fraction form
    552,652.20/762,605.69 = 310,929.57/x
  3. Step 3: Cross multiply
    552,652.20x = 762,605.69 × 310,929.57
  4. Step 4: Simplify right side
    552,652.20x = 237,116,657,716.61
  5. Step 5: Solve for x
    x = 237,116,657,716.61/552,652.20
  6. Step 6: Final answer
    x = 429,052.23

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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.