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Finding the Fourth Proportional to 300,793.12, 451,290.19 and 98,398.42

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Solution

The fourth proportional to 300,793.12, 451,290.19 and 98,398.42 is: 147,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,793.12 : 451,290.19 = 98,398.42 : x
  2. Step 2: Convert to fraction form
    300,793.12/451,290.19 = 98,398.42/x
  3. Step 3: Cross multiply
    300,793.12x = 451,290.19 × 98,398.42
  4. Step 4: Simplify right side
    300,793.12x = 44,406,241,411.50
  5. Step 5: Solve for x
    x = 44,406,241,411.50/300,793.12
  6. Step 6: Final answer
    x = 147,630.51

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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.