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Finding the Fourth Proportional to 532,520.80, 798,489.60 and 216,620.80

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Solution

The fourth proportional to 532,520.80, 798,489.60 and 216,620.80 is: 324,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,520.80 : 798,489.60 = 216,620.80 : x
  2. Step 2: Convert to fraction form
    532,520.80/798,489.60 = 216,620.80/x
  3. Step 3: Cross multiply
    532,520.80x = 798,489.60 × 216,620.80
  4. Step 4: Simplify right side
    532,520.80x = 172,969,455,943.68
  5. Step 5: Solve for x
    x = 172,969,455,943.68/532,520.80
  6. Step 6: Final answer
    x = 324,812.58

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1.5x scale

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.