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Finding the Fourth Proportional to 410,067.60, 615,101.40 and 305,091.60

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Solution

The fourth proportional to 410,067.60, 615,101.40 and 305,091.60 is: 457,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,067.60 : 615,101.40 = 305,091.60 : x
  2. Step 2: Convert to fraction form
    410,067.60/615,101.40 = 305,091.60/x
  3. Step 3: Cross multiply
    410,067.60x = 615,101.40 × 305,091.60
  4. Step 4: Simplify right side
    410,067.60x = 187,662,270,288.24
  5. Step 5: Solve for x
    x = 187,662,270,288.24/410,067.60
  6. Step 6: Final answer
    x = 457,637.40

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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.