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Finding the Fourth Proportional to 587,685.20, 881,657.40 and 188,344.40

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Solution

The fourth proportional to 587,685.20, 881,657.40 and 188,344.40 is: 282,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,685.20 : 881,657.40 = 188,344.40 : x
  2. Step 2: Convert to fraction form
    587,685.20/881,657.40 = 188,344.40/x
  3. Step 3: Cross multiply
    587,685.20x = 881,657.40 × 188,344.40
  4. Step 4: Simplify right side
    587,685.20x = 166,055,234,008.56
  5. Step 5: Solve for x
    x = 166,055,234,008.56/587,685.20
  6. Step 6: Final answer
    x = 282,558.13

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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.