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Finding the Fourth Proportional to 502,603.39, 754,278.86 and 203,086.55

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Solution

The fourth proportional to 502,603.39, 754,278.86 and 203,086.55 is: 304,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,603.39 : 754,278.86 = 203,086.55 : x
  2. Step 2: Convert to fraction form
    502,603.39/754,278.86 = 203,086.55/x
  3. Step 3: Cross multiply
    502,603.39x = 754,278.86 × 203,086.55
  4. Step 4: Simplify right side
    502,603.39x = 153,183,893,808.75
  5. Step 5: Solve for x
    x = 153,183,893,808.75/502,603.39
  6. Step 6: Final answer
    x = 304,780.86

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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.