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Finding the Fourth Proportional to 262,337.20, 393,311.40 and 112,454.80

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Solution

The fourth proportional to 262,337.20, 393,311.40 and 112,454.80 is: 168,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,337.20 : 393,311.40 = 112,454.80 : x
  2. Step 2: Convert to fraction form
    262,337.20/393,311.40 = 112,454.80/x
  3. Step 3: Cross multiply
    262,337.20x = 393,311.40 × 112,454.80
  4. Step 4: Simplify right side
    262,337.20x = 44,229,754,824.72
  5. Step 5: Solve for x
    x = 44,229,754,824.72/262,337.20
  6. Step 6: Final answer
    x = 168,598.87

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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.