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Finding the Fourth Proportional to 340,891.76, 511,337.70 and 104,234.46

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Solution

The fourth proportional to 340,891.76, 511,337.70 and 104,234.46 is: 156,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,891.76 : 511,337.70 = 104,234.46 : x
  2. Step 2: Convert to fraction form
    340,891.76/511,337.70 = 104,234.46/x
  3. Step 3: Cross multiply
    340,891.76x = 511,337.70 × 104,234.46
  4. Step 4: Simplify right side
    340,891.76x = 53,299,009,037.14
  5. Step 5: Solve for x
    x = 53,299,009,037.14/340,891.76
  6. Step 6: Final answer
    x = 156,351.71

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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.