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Finding the Fourth Proportional to 323,746.60, 485,619.90 and 181,445.80

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Solution

The fourth proportional to 323,746.60, 485,619.90 and 181,445.80 is: 272,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,746.60 : 485,619.90 = 181,445.80 : x
  2. Step 2: Convert to fraction form
    323,746.60/485,619.90 = 181,445.80/x
  3. Step 3: Cross multiply
    323,746.60x = 485,619.90 × 181,445.80
  4. Step 4: Simplify right side
    323,746.60x = 88,113,691,251.42
  5. Step 5: Solve for x
    x = 88,113,691,251.42/323,746.60
  6. Step 6: Final answer
    x = 272,168.70

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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.