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Finding the Fourth Proportional to 375,445.85, 517,700.18 and 239,264.19

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Solution

The fourth proportional to 375,445.85, 517,700.18 and 239,264.19 is: 329,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,445.85 : 517,700.18 = 239,264.19 : x
  2. Step 2: Convert to fraction form
    375,445.85/517,700.18 = 239,264.19/x
  3. Step 3: Cross multiply
    375,445.85x = 517,700.18 × 239,264.19
  4. Step 4: Simplify right side
    375,445.85x = 123,867,114,926.64
  5. Step 5: Solve for x
    x = 123,867,114,926.64/375,445.85
  6. Step 6: Final answer
    x = 329,920.06

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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.