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Finding the Fourth Proportional to 587,091.20, 880,636.80 and 377,139.20

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Solution

The fourth proportional to 587,091.20, 880,636.80 and 377,139.20 is: 565,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,091.20 : 880,636.80 = 377,139.20 : x
  2. Step 2: Convert to fraction form
    587,091.20/880,636.80 = 377,139.20/x
  3. Step 3: Cross multiply
    587,091.20x = 880,636.80 × 377,139.20
  4. Step 4: Simplify right side
    587,091.20x = 332,122,658,242.56
  5. Step 5: Solve for x
    x = 332,122,658,242.56/587,091.20
  6. Step 6: Final answer
    x = 565,708.80

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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.