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Finding the Fourth Proportional to 460,585.62, 690,903.18 and 145,067.22

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Solution

The fourth proportional to 460,585.62, 690,903.18 and 145,067.22 is: 217,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,585.62 : 690,903.18 = 145,067.22 : x
  2. Step 2: Convert to fraction form
    460,585.62/690,903.18 = 145,067.22/x
  3. Step 3: Cross multiply
    460,585.62x = 690,903.18 × 145,067.22
  4. Step 4: Simplify right side
    460,585.62x = 100,227,403,611.76
  5. Step 5: Solve for x
    x = 100,227,403,611.76/460,585.62
  6. Step 6: Final answer
    x = 217,608.63

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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.