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Finding the Fourth Proportional to 565,907.20, 781,062.88 and 324,351.66

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Solution

The fourth proportional to 565,907.20, 781,062.88 and 324,351.66 is: 447,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,907.20 : 781,062.88 = 324,351.66 : x
  2. Step 2: Convert to fraction form
    565,907.20/781,062.88 = 324,351.66/x
  3. Step 3: Cross multiply
    565,907.20x = 781,062.88 × 324,351.66
  4. Step 4: Simplify right side
    565,907.20x = 253,339,041,692.38
  5. Step 5: Solve for x
    x = 253,339,041,692.38/565,907.20
  6. Step 6: Final answer
    x = 447,668.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.