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Finding the Fourth Proportional to 367,600.13, 551,008.15 and 209,488.13

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Solution

The fourth proportional to 367,600.13, 551,008.15 and 209,488.13 is: 314,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,600.13 : 551,008.15 = 209,488.13 : x
  2. Step 2: Convert to fraction form
    367,600.13/551,008.15 = 209,488.13/x
  3. Step 3: Cross multiply
    367,600.13x = 551,008.15 × 209,488.13
  4. Step 4: Simplify right side
    367,600.13x = 115,429,666,958.26
  5. Step 5: Solve for x
    x = 115,429,666,958.26/367,600.13
  6. Step 6: Final answer
    x = 314,008.78

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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.