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Finding the Fourth Proportional to 469,873.33, 648,425.67 and 255,013.49

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Solution

The fourth proportional to 469,873.33, 648,425.67 and 255,013.49 is: 351,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,873.33 : 648,425.67 = 255,013.49 : x
  2. Step 2: Convert to fraction form
    469,873.33/648,425.67 = 255,013.49/x
  3. Step 3: Cross multiply
    469,873.33x = 648,425.67 × 255,013.49
  4. Step 4: Simplify right side
    469,873.33x = 165,357,292,311.97
  5. Step 5: Solve for x
    x = 165,357,292,311.97/469,873.33
  6. Step 6: Final answer
    x = 351,918.87

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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.