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Finding the Fourth Proportional to 585,947.60, 878,806.20 and 191,963.60

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Solution

The fourth proportional to 585,947.60, 878,806.20 and 191,963.60 is: 287,907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,947.60 : 878,806.20 = 191,963.60 : x
  2. Step 2: Convert to fraction form
    585,947.60/878,806.20 = 191,963.60/x
  3. Step 3: Cross multiply
    585,947.60x = 878,806.20 × 191,963.60
  4. Step 4: Simplify right side
    585,947.60x = 168,698,801,854.32
  5. Step 5: Solve for x
    x = 168,698,801,854.32/585,947.60
  6. Step 6: Final answer
    x = 287,907.66

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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.