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Finding the Fourth Proportional to 540,344.80, 809,350.80 and 447,032.80

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Solution

The fourth proportional to 540,344.80, 809,350.80 and 447,032.80 is: 669,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,344.80 : 809,350.80 = 447,032.80 : x
  2. Step 2: Convert to fraction form
    540,344.80/809,350.80 = 447,032.80/x
  3. Step 3: Cross multiply
    540,344.80x = 809,350.80 × 447,032.80
  4. Step 4: Simplify right side
    540,344.80x = 361,806,354,306.24
  5. Step 5: Solve for x
    x = 361,806,354,306.24/540,344.80
  6. Step 6: Final answer
    x = 669,584.23

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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.