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Finding the Fourth Proportional to 552,657.20, 762,612.58 and 310,934.58

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Solution

The fourth proportional to 552,657.20, 762,612.58 and 310,934.58 is: 429,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,657.20 : 762,612.58 = 310,934.58 : x
  2. Step 2: Convert to fraction form
    552,657.20/762,612.58 = 310,934.58/x
  3. Step 3: Cross multiply
    552,657.20x = 762,612.58 × 310,934.58
  4. Step 4: Simplify right side
    552,657.20x = 237,122,622,265.02
  5. Step 5: Solve for x
    x = 237,122,622,265.02/552,657.20
  6. Step 6: Final answer
    x = 429,059.14

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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.