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Finding the Fourth Proportional to 416,512.80, 624,769.20 and 371,023.20

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Solution

The fourth proportional to 416,512.80, 624,769.20 and 371,023.20 is: 556,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,512.80 : 624,769.20 = 371,023.20 : x
  2. Step 2: Convert to fraction form
    416,512.80/624,769.20 = 371,023.20/x
  3. Step 3: Cross multiply
    416,512.80x = 624,769.20 × 371,023.20
  4. Step 4: Simplify right side
    416,512.80x = 231,803,867,845.44
  5. Step 5: Solve for x
    x = 231,803,867,845.44/416,512.80
  6. Step 6: Final answer
    x = 556,534.80

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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.