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Finding the Fourth Proportional to 362,351.30, 543,008.55 and 266,836.10

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Solution

The fourth proportional to 362,351.30, 543,008.55 and 266,836.10 is: 399,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,351.30 : 543,008.55 = 266,836.10 : x
  2. Step 2: Convert to fraction form
    362,351.30/543,008.55 = 266,836.10/x
  3. Step 3: Cross multiply
    362,351.30x = 543,008.55 × 266,836.10
  4. Step 4: Simplify right side
    362,351.30x = 144,894,283,748.66
  5. Step 5: Solve for x
    x = 144,894,283,748.66/362,351.30
  6. Step 6: Final answer
    x = 399,872.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.