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Finding the Fourth Proportional to 368,398.74, 508,354.30 and 207,250.32

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Solution

The fourth proportional to 368,398.74, 508,354.30 and 207,250.32 is: 285,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,398.74 : 508,354.30 = 207,250.32 : x
  2. Step 2: Convert to fraction form
    368,398.74/508,354.30 = 207,250.32/x
  3. Step 3: Cross multiply
    368,398.74x = 508,354.30 × 207,250.32
  4. Step 4: Simplify right side
    368,398.74x = 105,356,591,348.38
  5. Step 5: Solve for x
    x = 105,356,591,348.38/368,398.74
  6. Step 6: Final answer
    x = 285,985.21

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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.