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Finding the Fourth Proportional to 404,523.40, 605,618.70 and 247,059.40

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Solution

The fourth proportional to 404,523.40, 605,618.70 and 247,059.40 is: 369,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,523.40 : 605,618.70 = 247,059.40 : x
  2. Step 2: Convert to fraction form
    404,523.40/605,618.70 = 247,059.40/x
  3. Step 3: Cross multiply
    404,523.40x = 605,618.70 × 247,059.40
  4. Step 4: Simplify right side
    404,523.40x = 149,623,792,650.78
  5. Step 5: Solve for x
    x = 149,623,792,650.78/404,523.40
  6. Step 6: Final answer
    x = 369,876.73

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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.