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Finding the Fourth Proportional to 624,022.86, 861,151.71 and 352,148.38

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Solution

The fourth proportional to 624,022.86, 861,151.71 and 352,148.38 is: 485,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,022.86 : 861,151.71 = 352,148.38 : x
  2. Step 2: Convert to fraction form
    624,022.86/861,151.71 = 352,148.38/x
  3. Step 3: Cross multiply
    624,022.86x = 861,151.71 × 352,148.38
  4. Step 4: Simplify right side
    624,022.86x = 303,253,179,610.73
  5. Step 5: Solve for x
    x = 303,253,179,610.73/624,022.86
  6. Step 6: Final answer
    x = 485,964.86

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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.