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Finding the Fourth Proportional to 625,808.91, 938,402.76 and 199,289.12

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Solution

The fourth proportional to 625,808.91, 938,402.76 and 199,289.12 is: 298,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,808.91 : 938,402.76 = 199,289.12 : x
  2. Step 2: Convert to fraction form
    625,808.91/938,402.76 = 199,289.12/x
  3. Step 3: Cross multiply
    625,808.91x = 938,402.76 × 199,289.12
  4. Step 4: Simplify right side
    625,808.91x = 187,013,462,591.98
  5. Step 5: Solve for x
    x = 187,013,462,591.98/625,808.91
  6. Step 6: Final answer
    x = 298,834.77

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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.