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Finding the Fourth Proportional to 410,464.68, 615,789.36 and 144,243.60

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Solution

The fourth proportional to 410,464.68, 615,789.36 and 144,243.60 is: 216,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,464.68 : 615,789.36 = 144,243.60 : x
  2. Step 2: Convert to fraction form
    410,464.68/615,789.36 = 144,243.60/x
  3. Step 3: Cross multiply
    410,464.68x = 615,789.36 × 144,243.60
  4. Step 4: Simplify right side
    410,464.68x = 88,823,674,128.10
  5. Step 5: Solve for x
    x = 88,823,674,128.10/410,464.68
  6. Step 6: Final answer
    x = 216,397.85

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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.