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Finding the Fourth Proportional to 366,959.70, 550,439.55 and 100,719.79

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Solution

The fourth proportional to 366,959.70, 550,439.55 and 100,719.79 is: 151,079.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,959.70 : 550,439.55 = 100,719.79 : x
  2. Step 2: Convert to fraction form
    366,959.70/550,439.55 = 100,719.79/x
  3. Step 3: Cross multiply
    366,959.70x = 550,439.55 × 100,719.79
  4. Step 4: Simplify right side
    366,959.70x = 55,440,154,507.60
  5. Step 5: Solve for x
    x = 55,440,154,507.60/366,959.70
  6. Step 6: Final answer
    x = 151,079.68

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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.