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Finding the Fourth Proportional to 625,100.68, 862,637.05 and 353,168.47

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Solution

The fourth proportional to 625,100.68, 862,637.05 and 353,168.47 is: 487,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,100.68 : 862,637.05 = 353,168.47 : x
  2. Step 2: Convert to fraction form
    625,100.68/862,637.05 = 353,168.47/x
  3. Step 3: Cross multiply
    625,100.68x = 862,637.05 × 353,168.47
  4. Step 4: Simplify right side
    625,100.68x = 304,656,207,113.81
  5. Step 5: Solve for x
    x = 304,656,207,113.81/625,100.68
  6. Step 6: Final answer
    x = 487,371.42

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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.