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Finding the Fourth Proportional to 650,661.28, 897,742.31 and 374,951.66

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Solution

The fourth proportional to 650,661.28, 897,742.31 and 374,951.66 is: 517,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,661.28 : 897,742.31 = 374,951.66 : x
  2. Step 2: Convert to fraction form
    650,661.28/897,742.31 = 374,951.66/x
  3. Step 3: Cross multiply
    650,661.28x = 897,742.31 × 374,951.66
  4. Step 4: Simplify right side
    650,661.28x = 336,609,963,023.27
  5. Step 5: Solve for x
    x = 336,609,963,023.27/650,661.28
  6. Step 6: Final answer
    x = 517,335.17

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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.