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Finding the Fourth Proportional to 408,879.24, 613,406.24 and 124,592.50

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Solution

The fourth proportional to 408,879.24, 613,406.24 and 124,592.50 is: 186,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,879.24 : 613,406.24 = 124,592.50 : x
  2. Step 2: Convert to fraction form
    408,879.24/613,406.24 = 124,592.50/x
  3. Step 3: Cross multiply
    408,879.24x = 613,406.24 × 124,592.50
  4. Step 4: Simplify right side
    408,879.24x = 76,425,816,957.20
  5. Step 5: Solve for x
    x = 76,425,816,957.20/408,879.24
  6. Step 6: Final answer
    x = 186,915.38

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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.