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Finding the Fourth Proportional to 416,391.47, 624,493.78 and 191,535.97

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Solution

The fourth proportional to 416,391.47, 624,493.78 and 191,535.97 is: 287,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,391.47 : 624,493.78 = 191,535.97 : x
  2. Step 2: Convert to fraction form
    416,391.47/624,493.78 = 191,535.97/x
  3. Step 3: Cross multiply
    416,391.47x = 624,493.78 × 191,535.97
  4. Step 4: Simplify right side
    416,391.47x = 119,613,021,911.27
  5. Step 5: Solve for x
    x = 119,613,021,911.27/416,391.47
  6. Step 6: Final answer
    x = 287,260.98

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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.