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Finding the Fourth Proportional to 3,312,947.52, 4,969,532.52 and 916,591.68

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Solution

The fourth proportional to 3,312,947.52, 4,969,532.52 and 916,591.68 is: 1,374,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312,947.52 : 4,969,532.52 = 916,591.68 : x
  2. Step 2: Convert to fraction form
    3,312,947.52/4,969,532.52 = 916,591.68/x
  3. Step 3: Cross multiply
    3,312,947.52x = 4,969,532.52 × 916,591.68
  4. Step 4: Simplify right side
    3,312,947.52x = 4,555,032,161,321.43
  5. Step 5: Solve for x
    x = 4,555,032,161,321.43/3,312,947.52
  6. Step 6: Final answer
    x = 1,374,918.30

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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.