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Finding the Fourth Proportional to 610,162.20, 915,233.58 and 189,438.48

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Solution

The fourth proportional to 610,162.20, 915,233.58 and 189,438.48 is: 284,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,162.20 : 915,233.58 = 189,438.48 : x
  2. Step 2: Convert to fraction form
    610,162.20/915,233.58 = 189,438.48/x
  3. Step 3: Cross multiply
    610,162.20x = 915,233.58 × 189,438.48
  4. Step 4: Simplify right side
    610,162.20x = 173,380,458,240.16
  5. Step 5: Solve for x
    x = 173,380,458,240.16/610,162.20
  6. Step 6: Final answer
    x = 284,154.70

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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.