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Finding the Fourth Proportional to 625,775.14, 938,615.51 and 199,293.73

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Solution

The fourth proportional to 625,775.14, 938,615.51 and 199,293.73 is: 298,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,775.14 : 938,615.51 = 199,293.73 : x
  2. Step 2: Convert to fraction form
    625,775.14/938,615.51 = 199,293.73/x
  3. Step 3: Cross multiply
    625,775.14x = 938,615.51 × 199,293.73
  4. Step 4: Simplify right side
    625,775.14x = 187,060,186,023.75
  5. Step 5: Solve for x
    x = 187,060,186,023.75/625,775.14
  6. Step 6: Final answer
    x = 298,925.56

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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.