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Finding the Fourth Proportional to 410,576.80, 615,865.20 and 297,727.60

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Solution

The fourth proportional to 410,576.80, 615,865.20 and 297,727.60 is: 446,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,576.80 : 615,865.20 = 297,727.60 : x
  2. Step 2: Convert to fraction form
    410,576.80/615,865.20 = 297,727.60/x
  3. Step 3: Cross multiply
    410,576.80x = 615,865.20 × 297,727.60
  4. Step 4: Simplify right side
    410,576.80x = 183,360,067,919.52
  5. Step 5: Solve for x
    x = 183,360,067,919.52/410,576.80
  6. Step 6: Final answer
    x = 446,591.40

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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.