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Finding the Fourth Proportional to 576,858.72, 865,830.72 and 292,753.20

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Solution

The fourth proportional to 576,858.72, 865,830.72 and 292,753.20 is: 439,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,858.72 : 865,830.72 = 292,753.20 : x
  2. Step 2: Convert to fraction form
    576,858.72/865,830.72 = 292,753.20/x
  3. Step 3: Cross multiply
    576,858.72x = 865,830.72 × 292,753.20
  4. Step 4: Simplify right side
    576,858.72x = 253,474,713,938.30
  5. Step 5: Solve for x
    x = 253,474,713,938.30/576,858.72
  6. Step 6: Final answer
    x = 439,405.19

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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.