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Finding the Fourth Proportional to 329,190.40, 493,785.60 and 276,046.30

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Solution

The fourth proportional to 329,190.40, 493,785.60 and 276,046.30 is: 414,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,190.40 : 493,785.60 = 276,046.30 : x
  2. Step 2: Convert to fraction form
    329,190.40/493,785.60 = 276,046.30/x
  3. Step 3: Cross multiply
    329,190.40x = 493,785.60 × 276,046.30
  4. Step 4: Simplify right side
    329,190.40x = 136,307,687,873.28
  5. Step 5: Solve for x
    x = 136,307,687,873.28/329,190.40
  6. Step 6: Final answer
    x = 414,069.45

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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.