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Finding the Fourth Proportional to 454,363.20, 681,544.80 and 277,216.20

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Solution

The fourth proportional to 454,363.20, 681,544.80 and 277,216.20 is: 415,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,363.20 : 681,544.80 = 277,216.20 : x
  2. Step 2: Convert to fraction form
    454,363.20/681,544.80 = 277,216.20/x
  3. Step 3: Cross multiply
    454,363.20x = 681,544.80 × 277,216.20
  4. Step 4: Simplify right side
    454,363.20x = 188,935,259,585.76
  5. Step 5: Solve for x
    x = 188,935,259,585.76/454,363.20
  6. Step 6: Final answer
    x = 415,824.30

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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.