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Finding the Fourth Proportional to 922,691.44, 1,273,314.36 and 520,283.44

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Solution

The fourth proportional to 922,691.44, 1,273,314.36 and 520,283.44 is: 717,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,691.44 : 1,273,314.36 = 520,283.44 : x
  2. Step 2: Convert to fraction form
    922,691.44/1,273,314.36 = 520,283.44/x
  3. Step 3: Cross multiply
    922,691.44x = 1,273,314.36 × 520,283.44
  4. Step 4: Simplify right side
    922,691.44x = 662,484,375,422.20
  5. Step 5: Solve for x
    x = 662,484,375,422.20/922,691.44
  6. Step 6: Final answer
    x = 717,991.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.