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Finding the Fourth Proportional to 481,139.84, 663,974.24 and 266,294.72

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Solution

The fourth proportional to 481,139.84, 663,974.24 and 266,294.72 is: 367,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,139.84 : 663,974.24 = 266,294.72 : x
  2. Step 2: Convert to fraction form
    481,139.84/663,974.24 = 266,294.72/x
  3. Step 3: Cross multiply
    481,139.84x = 663,974.24 × 266,294.72
  4. Step 4: Simplify right side
    481,139.84x = 176,812,834,328.01
  5. Step 5: Solve for x
    x = 176,812,834,328.01/481,139.84
  6. Step 6: Final answer
    x = 367,487.41

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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.