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Finding the Fourth Proportional to 469,891.98, 648,451.20 and 255,032.04

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Solution

The fourth proportional to 469,891.98, 648,451.20 and 255,032.04 is: 351,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,891.98 : 648,451.20 = 255,032.04 : x
  2. Step 2: Convert to fraction form
    469,891.98/648,451.20 = 255,032.04/x
  3. Step 3: Cross multiply
    469,891.98x = 648,451.20 × 255,032.04
  4. Step 4: Simplify right side
    469,891.98x = 165,375,832,376.45
  5. Step 5: Solve for x
    x = 165,375,832,376.45/469,891.98
  6. Step 6: Final answer
    x = 351,944.36

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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.