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Finding the Fourth Proportional to 1,203,132, 1,660,164 and 719,520.48

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Solution

The fourth proportional to 1,203,132, 1,660,164 and 719,520.48 is: 992,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,132 : 1,660,164 = 719,520.48 : x
  2. Step 2: Convert to fraction form
    1,203,132/1,660,164 = 719,520.48/x
  3. Step 3: Cross multiply
    1,203,132x = 1,660,164 × 719,520.48
  4. Step 4: Simplify right side
    1,203,132x = 1,194,521,998,158.72
  5. Step 5: Solve for x
    x = 1,194,521,998,158.72/1,203,132
  6. Step 6: Final answer
    x = 992,843.68

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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.