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Finding the Fourth Proportional to 401,078.74, 601,618.92 and 164,378.92

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Solution

The fourth proportional to 401,078.74, 601,618.92 and 164,378.92 is: 246,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,078.74 : 601,618.92 = 164,378.92 : x
  2. Step 2: Convert to fraction form
    401,078.74/601,618.92 = 164,378.92/x
  3. Step 3: Cross multiply
    401,078.74x = 601,618.92 × 164,378.92
  4. Step 4: Simplify right side
    401,078.74x = 98,893,468,321.17
  5. Step 5: Solve for x
    x = 98,893,468,321.17/401,078.74
  6. Step 6: Final answer
    x = 246,568.71

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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.