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Finding the Fourth Proportional to 613,791.32, 846,998.70 and 338,095.58

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Solution

The fourth proportional to 613,791.32, 846,998.70 and 338,095.58 is: 466,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,791.32 : 846,998.70 = 338,095.58 : x
  2. Step 2: Convert to fraction form
    613,791.32/846,998.70 = 338,095.58/x
  3. Step 3: Cross multiply
    613,791.32x = 846,998.70 × 338,095.58
  4. Step 4: Simplify right side
    613,791.32x = 286,366,516,735.75
  5. Step 5: Solve for x
    x = 286,366,516,735.75/613,791.32
  6. Step 6: Final answer
    x = 466,553.55

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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.