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Finding the Fourth Proportional to 615,998.16, 850,091.40 and 361,532.88

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Solution

The fourth proportional to 615,998.16, 850,091.40 and 361,532.88 is: 498,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,998.16 : 850,091.40 = 361,532.88 : x
  2. Step 2: Convert to fraction form
    615,998.16/850,091.40 = 361,532.88/x
  3. Step 3: Cross multiply
    615,998.16x = 850,091.40 × 361,532.88
  4. Step 4: Simplify right side
    615,998.16x = 307,335,992,105.23
  5. Step 5: Solve for x
    x = 307,335,992,105.23/615,998.16
  6. Step 6: Final answer
    x = 498,923.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.