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Finding the Fourth Proportional to 469,884.28, 648,423.86 and 255,020.04

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Solution

The fourth proportional to 469,884.28, 648,423.86 and 255,020.04 is: 351,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,884.28 : 648,423.86 = 255,020.04 : x
  2. Step 2: Convert to fraction form
    469,884.28/648,423.86 = 255,020.04/x
  3. Step 3: Cross multiply
    469,884.28x = 648,423.86 × 255,020.04
  4. Step 4: Simplify right side
    469,884.28x = 165,361,078,714.15
  5. Step 5: Solve for x
    x = 165,361,078,714.15/469,884.28
  6. Step 6: Final answer
    x = 351,918.73

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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.