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Finding the Fourth Proportional to 416,584.40, 624,876.60 and 101,040.80

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Solution

The fourth proportional to 416,584.40, 624,876.60 and 101,040.80 is: 151,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,584.40 : 624,876.60 = 101,040.80 : x
  2. Step 2: Convert to fraction form
    416,584.40/624,876.60 = 101,040.80/x
  3. Step 3: Cross multiply
    416,584.40x = 624,876.60 × 101,040.80
  4. Step 4: Simplify right side
    416,584.40x = 63,138,031,565.28
  5. Step 5: Solve for x
    x = 63,138,031,565.28/416,584.40
  6. Step 6: Final answer
    x = 151,561.20

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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.