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Finding the Fourth Proportional to 591,722.80, 887,584.20 and 410,639.20

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Solution

The fourth proportional to 591,722.80, 887,584.20 and 410,639.20 is: 615,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,722.80 : 887,584.20 = 410,639.20 : x
  2. Step 2: Convert to fraction form
    591,722.80/887,584.20 = 410,639.20/x
  3. Step 3: Cross multiply
    591,722.80x = 887,584.20 × 410,639.20
  4. Step 4: Simplify right side
    591,722.80x = 364,476,865,820.64
  5. Step 5: Solve for x
    x = 364,476,865,820.64/591,722.80
  6. Step 6: Final answer
    x = 615,958.80

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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.