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Finding the Fourth Proportional to 445,432.56, 614,552.28 and 251,821.56

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Solution

The fourth proportional to 445,432.56, 614,552.28 and 251,821.56 is: 347,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,432.56 : 614,552.28 = 251,821.56 : x
  2. Step 2: Convert to fraction form
    445,432.56/614,552.28 = 251,821.56/x
  3. Step 3: Cross multiply
    445,432.56x = 614,552.28 × 251,821.56
  4. Step 4: Simplify right side
    445,432.56x = 154,757,513,851.16
  5. Step 5: Solve for x
    x = 154,757,513,851.16/445,432.56
  6. Step 6: Final answer
    x = 347,431.97

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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.