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Finding the Fourth Proportional to 374,458.43, 516,752.66 and 202,375.89

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Solution

The fourth proportional to 374,458.43, 516,752.66 and 202,375.89 is: 279,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,458.43 : 516,752.66 = 202,375.89 : x
  2. Step 2: Convert to fraction form
    374,458.43/516,752.66 = 202,375.89/x
  3. Step 3: Cross multiply
    374,458.43x = 516,752.66 × 202,375.89
  4. Step 4: Simplify right side
    374,458.43x = 104,578,279,983.31
  5. Step 5: Solve for x
    x = 104,578,279,983.31/374,458.43
  6. Step 6: Final answer
    x = 279,278.74

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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.