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Finding the Fourth Proportional to 262,601.40, 393,902.10 and 157,366.20

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Solution

The fourth proportional to 262,601.40, 393,902.10 and 157,366.20 is: 236,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,601.40 : 393,902.10 = 157,366.20 : x
  2. Step 2: Convert to fraction form
    262,601.40/393,902.10 = 157,366.20/x
  3. Step 3: Cross multiply
    262,601.40x = 393,902.10 × 157,366.20
  4. Step 4: Simplify right side
    262,601.40x = 61,986,876,649.02
  5. Step 5: Solve for x
    x = 61,986,876,649.02/262,601.40
  6. Step 6: Final answer
    x = 236,049.30

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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.