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Finding the Fourth Proportional to 451,793.76, 677,689.56 and 249,380.16

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Solution

The fourth proportional to 451,793.76, 677,689.56 and 249,380.16 is: 374,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,793.76 : 677,689.56 = 249,380.16 : x
  2. Step 2: Convert to fraction form
    451,793.76/677,689.56 = 249,380.16/x
  3. Step 3: Cross multiply
    451,793.76x = 677,689.56 × 249,380.16
  4. Step 4: Simplify right side
    451,793.76x = 169,002,330,903.13
  5. Step 5: Solve for x
    x = 169,002,330,903.13/451,793.76
  6. Step 6: Final answer
    x = 374,069.64

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Double scale
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Similar ratio
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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.