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Finding the Fourth Proportional to 868,019.46, 1,304,030.31 and 832,147.80

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Solution

The fourth proportional to 868,019.46, 1,304,030.31 and 832,147.80 is: 1,250,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,019.46 : 1,304,030.31 = 832,147.80 : x
  2. Step 2: Convert to fraction form
    868,019.46/1,304,030.31 = 832,147.80/x
  3. Step 3: Cross multiply
    868,019.46x = 1,304,030.31 × 832,147.80
  4. Step 4: Simplify right side
    868,019.46x = 1,085,145,947,079.67
  5. Step 5: Solve for x
    x = 1,085,145,947,079.67/868,019.46
  6. Step 6: Final answer
    x = 1,250,140.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.