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Finding the Fourth Proportional to 480,414.92, 663,038.46 and 276,461.64

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Solution

The fourth proportional to 480,414.92, 663,038.46 and 276,461.64 is: 381,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,414.92 : 663,038.46 = 276,461.64 : x
  2. Step 2: Convert to fraction form
    480,414.92/663,038.46 = 276,461.64/x
  3. Step 3: Cross multiply
    480,414.92x = 663,038.46 × 276,461.64
  4. Step 4: Simplify right side
    480,414.92x = 183,304,700,034.67
  5. Step 5: Solve for x
    x = 183,304,700,034.67/480,414.92
  6. Step 6: Final answer
    x = 381,554.97

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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.