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Finding the Fourth Proportional to 481,003.92, 663,778.80 and 266,140.08

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Solution

The fourth proportional to 481,003.92, 663,778.80 and 266,140.08 is: 367,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,003.92 : 663,778.80 = 266,140.08 : x
  2. Step 2: Convert to fraction form
    481,003.92/663,778.80 = 266,140.08/x
  3. Step 3: Cross multiply
    481,003.92x = 663,778.80 × 266,140.08
  4. Step 4: Simplify right side
    481,003.92x = 176,658,142,934.30
  5. Step 5: Solve for x
    x = 176,658,142,934.30/481,003.92
  6. Step 6: Final answer
    x = 367,269.65

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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.