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Finding the Fourth Proportional to 835,348.80, 1,253,023.20 and 802,689.60

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Solution

The fourth proportional to 835,348.80, 1,253,023.20 and 802,689.60 is: 1,204,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,348.80 : 1,253,023.20 = 802,689.60 : x
  2. Step 2: Convert to fraction form
    835,348.80/1,253,023.20 = 802,689.60/x
  3. Step 3: Cross multiply
    835,348.80x = 1,253,023.20 × 802,689.60
  4. Step 4: Simplify right side
    835,348.80x = 1,005,788,691,198.72
  5. Step 5: Solve for x
    x = 1,005,788,691,198.72/835,348.80
  6. Step 6: Final answer
    x = 1,204,034.40

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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.