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Finding the Fourth Proportional to 454,407.60, 681,611.40 and 188,687.10

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Solution

The fourth proportional to 454,407.60, 681,611.40 and 188,687.10 is: 283,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,407.60 : 681,611.40 = 188,687.10 : x
  2. Step 2: Convert to fraction form
    454,407.60/681,611.40 = 188,687.10/x
  3. Step 3: Cross multiply
    454,407.60x = 681,611.40 × 188,687.10
  4. Step 4: Simplify right side
    454,407.60x = 128,611,278,392.94
  5. Step 5: Solve for x
    x = 128,611,278,392.94/454,407.60
  6. Step 6: Final answer
    x = 283,030.65

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Similar ratio
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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.