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Finding the Fourth Proportional to 480,885.56, 663,641.62 and 266,021.92

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Solution

The fourth proportional to 480,885.56, 663,641.62 and 266,021.92 is: 367,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,885.56 : 663,641.62 = 266,021.92 : x
  2. Step 2: Convert to fraction form
    480,885.56/663,641.62 = 266,021.92/x
  3. Step 3: Cross multiply
    480,885.56x = 663,641.62 × 266,021.92
  4. Step 4: Simplify right side
    480,885.56x = 176,543,217,944.31
  5. Step 5: Solve for x
    x = 176,543,217,944.31/480,885.56
  6. Step 6: Final answer
    x = 367,121.06

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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.