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Finding the Fourth Proportional to 665,068.60, 996,946.80 and 327,833.20

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Solution

The fourth proportional to 665,068.60, 996,946.80 and 327,833.20 is: 491,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,068.60 : 996,946.80 = 327,833.20 : x
  2. Step 2: Convert to fraction form
    665,068.60/996,946.80 = 327,833.20/x
  3. Step 3: Cross multiply
    665,068.60x = 996,946.80 × 327,833.20
  4. Step 4: Simplify right side
    665,068.60x = 326,832,259,673.76
  5. Step 5: Solve for x
    x = 326,832,259,673.76/665,068.60
  6. Step 6: Final answer
    x = 491,426.39

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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.