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Finding the Fourth Proportional to 622,981.82, 931,059.46 and 454,856.60

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Solution

The fourth proportional to 622,981.82, 931,059.46 and 454,856.60 is: 679,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,981.82 : 931,059.46 = 454,856.60 : x
  2. Step 2: Convert to fraction form
    622,981.82/931,059.46 = 454,856.60/x
  3. Step 3: Cross multiply
    622,981.82x = 931,059.46 × 454,856.60
  4. Step 4: Simplify right side
    622,981.82x = 423,498,540,373.44
  5. Step 5: Solve for x
    x = 423,498,540,373.44/622,981.82
  6. Step 6: Final answer
    x = 679,792.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.