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Finding the Fourth Proportional to 309,082.71, 426,505.46 and 174,946.71

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Solution

The fourth proportional to 309,082.71, 426,505.46 and 174,946.71 is: 241,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,082.71 : 426,505.46 = 174,946.71 : x
  2. Step 2: Convert to fraction form
    309,082.71/426,505.46 = 174,946.71/x
  3. Step 3: Cross multiply
    309,082.71x = 426,505.46 × 174,946.71
  4. Step 4: Simplify right side
    309,082.71x = 74,615,726,149.30
  5. Step 5: Solve for x
    x = 74,615,726,149.30/309,082.71
  6. Step 6: Final answer
    x = 241,410.22

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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.