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Finding the Fourth Proportional to 424,015.18, 636,019.52 and 108,471.58

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Solution

The fourth proportional to 424,015.18, 636,019.52 and 108,471.58 is: 162,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,015.18 : 636,019.52 = 108,471.58 : x
  2. Step 2: Convert to fraction form
    424,015.18/636,019.52 = 108,471.58/x
  3. Step 3: Cross multiply
    424,015.18x = 636,019.52 × 108,471.58
  4. Step 4: Simplify right side
    424,015.18x = 68,990,042,245.24
  5. Step 5: Solve for x
    x = 68,990,042,245.24/424,015.18
  6. Step 6: Final answer
    x = 162,706.54

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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.