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Finding the Fourth Proportional to 694,877.11, 958,921.27 and 393,071.11

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Solution

The fourth proportional to 694,877.11, 958,921.27 and 393,071.11 is: 542,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,877.11 : 958,921.27 = 393,071.11 : x
  2. Step 2: Convert to fraction form
    694,877.11/958,921.27 = 393,071.11/x
  3. Step 3: Cross multiply
    694,877.11x = 958,921.27 × 393,071.11
  4. Step 4: Simplify right side
    694,877.11x = 376,924,248,001.51
  5. Step 5: Solve for x
    x = 376,924,248,001.51/694,877.11
  6. Step 6: Final answer
    x = 542,432.96

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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.