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Finding the Fourth Proportional to 835,519.60, 1,253,279.40 and 744,540.40

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Solution

The fourth proportional to 835,519.60, 1,253,279.40 and 744,540.40 is: 1,116,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,519.60 : 1,253,279.40 = 744,540.40 : x
  2. Step 2: Convert to fraction form
    835,519.60/1,253,279.40 = 744,540.40/x
  3. Step 3: Cross multiply
    835,519.60x = 1,253,279.40 × 744,540.40
  4. Step 4: Simplify right side
    835,519.60x = 933,117,145,787.76
  5. Step 5: Solve for x
    x = 933,117,145,787.76/835,519.60
  6. Step 6: Final answer
    x = 1,116,810.60

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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.