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Finding the Fourth Proportional to 416,365.64, 624,570.77 and 132,077.78

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Solution

The fourth proportional to 416,365.64, 624,570.77 and 132,077.78 is: 198,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,365.64 : 624,570.77 = 132,077.78 : x
  2. Step 2: Convert to fraction form
    416,365.64/624,570.77 = 132,077.78/x
  3. Step 3: Cross multiply
    416,365.64x = 624,570.77 × 132,077.78
  4. Step 4: Simplify right side
    416,365.64x = 82,491,920,754.49
  5. Step 5: Solve for x
    x = 82,491,920,754.49/416,365.64
  6. Step 6: Final answer
    x = 198,123.75

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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.