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Finding the Fourth Proportional to 839,691.20, 1,259,074.56 and 573,752

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Solution

The fourth proportional to 839,691.20, 1,259,074.56 and 573,752 is: 860,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,691.20 : 1,259,074.56 = 573,752 : x
  2. Step 2: Convert to fraction form
    839,691.20/1,259,074.56 = 573,752/x
  3. Step 3: Cross multiply
    839,691.20x = 1,259,074.56 × 573,752
  4. Step 4: Simplify right side
    839,691.20x = 722,396,546,949.12
  5. Step 5: Solve for x
    x = 722,396,546,949.12/839,691.20
  6. Step 6: Final answer
    x = 860,312.16

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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.