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Finding the Fourth Proportional to 480,883.56, 663,638.86 and 266,019.92

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Solution

The fourth proportional to 480,883.56, 663,638.86 and 266,019.92 is: 367,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,883.56 : 663,638.86 = 266,019.92 : x
  2. Step 2: Convert to fraction form
    480,883.56/663,638.86 = 266,019.92/x
  3. Step 3: Cross multiply
    480,883.56x = 663,638.86 × 266,019.92
  4. Step 4: Simplify right side
    480,883.56x = 176,541,156,446.09
  5. Step 5: Solve for x
    x = 176,541,156,446.09/480,883.56
  6. Step 6: Final answer
    x = 367,118.30

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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.