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Finding the Fourth Proportional to 502,616.80, 753,925.20 and 331,374.70

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Solution

The fourth proportional to 502,616.80, 753,925.20 and 331,374.70 is: 497,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,616.80 : 753,925.20 = 331,374.70 : x
  2. Step 2: Convert to fraction form
    502,616.80/753,925.20 = 331,374.70/x
  3. Step 3: Cross multiply
    502,616.80x = 753,925.20 × 331,374.70
  4. Step 4: Simplify right side
    502,616.80x = 249,831,736,972.44
  5. Step 5: Solve for x
    x = 249,831,736,972.44/502,616.80
  6. Step 6: Final answer
    x = 497,062.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.