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Finding the Fourth Proportional to 613,694.60, 920,541.90 and 170,462.60

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Solution

The fourth proportional to 613,694.60, 920,541.90 and 170,462.60 is: 255,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,694.60 : 920,541.90 = 170,462.60 : x
  2. Step 2: Convert to fraction form
    613,694.60/920,541.90 = 170,462.60/x
  3. Step 3: Cross multiply
    613,694.60x = 920,541.90 × 170,462.60
  4. Step 4: Simplify right side
    613,694.60x = 156,917,965,682.94
  5. Step 5: Solve for x
    x = 156,917,965,682.94/613,694.60
  6. Step 6: Final answer
    x = 255,693.90

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Similar ratio
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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.