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Finding the Fourth Proportional to 480,560.14, 663,146.22 and 265,687.66

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Solution

The fourth proportional to 480,560.14, 663,146.22 and 265,687.66 is: 366,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,560.14 : 663,146.22 = 265,687.66 : x
  2. Step 2: Convert to fraction form
    480,560.14/663,146.22 = 265,687.66/x
  3. Step 3: Cross multiply
    480,560.14x = 663,146.22 × 265,687.66
  4. Step 4: Simplify right side
    480,560.14x = 176,189,767,429.65
  5. Step 5: Solve for x
    x = 176,189,767,429.65/480,560.14
  6. Step 6: Final answer
    x = 366,634.17

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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.