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Finding the Fourth Proportional to 440,611.76, 660,952.65 and 187,894.40

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Solution

The fourth proportional to 440,611.76, 660,952.65 and 187,894.40 is: 281,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,611.76 : 660,952.65 = 187,894.40 : x
  2. Step 2: Convert to fraction form
    440,611.76/660,952.65 = 187,894.40/x
  3. Step 3: Cross multiply
    440,611.76x = 660,952.65 × 187,894.40
  4. Step 4: Simplify right side
    440,611.76x = 124,189,301,600.16
  5. Step 5: Solve for x
    x = 124,189,301,600.16/440,611.76
  6. Step 6: Final answer
    x = 281,856.53

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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.