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Finding the Fourth Proportional to 1,447,799.62, 1,998,058.13 and 835,978.17

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Solution

The fourth proportional to 1,447,799.62, 1,998,058.13 and 835,978.17 is: 1,153,704.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,799.62 : 1,998,058.13 = 835,978.17 : x
  2. Step 2: Convert to fraction form
    1,447,799.62/1,998,058.13 = 835,978.17/x
  3. Step 3: Cross multiply
    1,447,799.62x = 1,998,058.13 × 835,978.17
  4. Step 4: Simplify right side
    1,447,799.62x = 1,670,332,981,160.97
  5. Step 5: Solve for x
    x = 1,670,332,981,160.97/1,447,799.62
  6. Step 6: Final answer
    x = 1,153,704.53

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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.