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Finding the Fourth Proportional to 654,932.70, 982,917.45 and 255,764.70

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Solution

The fourth proportional to 654,932.70, 982,917.45 and 255,764.70 is: 383,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,932.70 : 982,917.45 = 255,764.70 : x
  2. Step 2: Convert to fraction form
    654,932.70/982,917.45 = 255,764.70/x
  3. Step 3: Cross multiply
    654,932.70x = 982,917.45 × 255,764.70
  4. Step 4: Simplify right side
    654,932.70x = 251,395,586,724.02
  5. Step 5: Solve for x
    x = 251,395,586,724.02/654,932.70
  6. Step 6: Final answer
    x = 383,849.50

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Double scale
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Similar ratio
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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.