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Finding the Fourth Proportional to 368,470.26, 508,498.90 and 207,331.04

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Solution

The fourth proportional to 368,470.26, 508,498.90 and 207,331.04 is: 286,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,470.26 : 508,498.90 = 207,331.04 : x
  2. Step 2: Convert to fraction form
    368,470.26/508,498.90 = 207,331.04/x
  3. Step 3: Cross multiply
    368,470.26x = 508,498.90 × 207,331.04
  4. Step 4: Simplify right side
    368,470.26x = 105,427,605,775.86
  5. Step 5: Solve for x
    x = 105,427,605,775.86/368,470.26
  6. Step 6: Final answer
    x = 286,122.43

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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.