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Finding the Fourth Proportional to 576,427.60, 865,168.76 and 292,314.24

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Solution

The fourth proportional to 576,427.60, 865,168.76 and 292,314.24 is: 438,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,427.60 : 865,168.76 = 292,314.24 : x
  2. Step 2: Convert to fraction form
    576,427.60/865,168.76 = 292,314.24/x
  3. Step 3: Cross multiply
    576,427.60x = 865,168.76 × 292,314.24
  4. Step 4: Simplify right side
    576,427.60x = 252,901,148,551.14
  5. Step 5: Solve for x
    x = 252,901,148,551.14/576,427.60
  6. Step 6: Final answer
    x = 438,738.79

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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.