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Finding the Fourth Proportional to 461,365.12, 636,692.16 and 270,432.64

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Solution

The fourth proportional to 461,365.12, 636,692.16 and 270,432.64 is: 373,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,365.12 : 636,692.16 = 270,432.64 : x
  2. Step 2: Convert to fraction form
    461,365.12/636,692.16 = 270,432.64/x
  3. Step 3: Cross multiply
    461,365.12x = 636,692.16 × 270,432.64
  4. Step 4: Simplify right side
    461,365.12x = 172,182,341,696.10
  5. Step 5: Solve for x
    x = 172,182,341,696.10/461,365.12
  6. Step 6: Final answer
    x = 373,201.91

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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.