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Finding the Fourth Proportional to 591,764.80, 887,128.80 and 355,201.60

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Solution

The fourth proportional to 591,764.80, 887,128.80 and 355,201.60 is: 532,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,764.80 : 887,128.80 = 355,201.60 : x
  2. Step 2: Convert to fraction form
    591,764.80/887,128.80 = 355,201.60/x
  3. Step 3: Cross multiply
    591,764.80x = 887,128.80 × 355,201.60
  4. Step 4: Simplify right side
    591,764.80x = 315,109,569,166.08
  5. Step 5: Solve for x
    x = 315,109,569,166.08/591,764.80
  6. Step 6: Final answer
    x = 532,491.23

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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.