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Finding the Fourth Proportional to 616,447.28, 924,510.54 and 261,278.48

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Solution

The fourth proportional to 616,447.28, 924,510.54 and 261,278.48 is: 391,849.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,447.28 : 924,510.54 = 261,278.48 : x
  2. Step 2: Convert to fraction form
    616,447.28/924,510.54 = 261,278.48/x
  3. Step 3: Cross multiply
    616,447.28x = 924,510.54 × 261,278.48
  4. Step 4: Simplify right side
    616,447.28x = 241,554,711,926.25
  5. Step 5: Solve for x
    x = 241,554,711,926.25/616,447.28
  6. Step 6: Final answer
    x = 391,849.75

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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.