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Finding the Fourth Proportional to 587,540.20, 881,439.90 and 188,199.40

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Solution

The fourth proportional to 587,540.20, 881,439.90 and 188,199.40 is: 282,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,540.20 : 881,439.90 = 188,199.40 : x
  2. Step 2: Convert to fraction form
    587,540.20/881,439.90 = 188,199.40/x
  3. Step 3: Cross multiply
    587,540.20x = 881,439.90 × 188,199.40
  4. Step 4: Simplify right side
    587,540.20x = 165,886,460,316.06
  5. Step 5: Solve for x
    x = 165,886,460,316.06/587,540.20
  6. Step 6: Final answer
    x = 282,340.61

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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.