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Finding the Fourth Proportional to 435,025.20, 652,537.80 and 393,034.80

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Solution

The fourth proportional to 435,025.20, 652,537.80 and 393,034.80 is: 589,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,025.20 : 652,537.80 = 393,034.80 : x
  2. Step 2: Convert to fraction form
    435,025.20/652,537.80 = 393,034.80/x
  3. Step 3: Cross multiply
    435,025.20x = 652,537.80 × 393,034.80
  4. Step 4: Simplify right side
    435,025.20x = 256,470,063,715.44
  5. Step 5: Solve for x
    x = 256,470,063,715.44/435,025.20
  6. Step 6: Final answer
    x = 589,552.20

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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.