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Finding the Fourth Proportional to 1,202,376, 1,659,279.36 and 665,832

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Solution

The fourth proportional to 1,202,376, 1,659,279.36 and 665,832 is: 918,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,376 : 1,659,279.36 = 665,832 : x
  2. Step 2: Convert to fraction form
    1,202,376/1,659,279.36 = 665,832/x
  3. Step 3: Cross multiply
    1,202,376x = 1,659,279.36 × 665,832
  4. Step 4: Simplify right side
    1,202,376x = 1,104,801,294,827.52
  5. Step 5: Solve for x
    x = 1,104,801,294,827.52/1,202,376
  6. Step 6: Final answer
    x = 918,848.43

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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.