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Finding the Fourth Proportional to 519,793.12, 717,487.50 and 304,854.76

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Solution

The fourth proportional to 519,793.12, 717,487.50 and 304,854.76 is: 420,801.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,793.12 : 717,487.50 = 304,854.76 : x
  2. Step 2: Convert to fraction form
    519,793.12/717,487.50 = 304,854.76/x
  3. Step 3: Cross multiply
    519,793.12x = 717,487.50 × 304,854.76
  4. Step 4: Simplify right side
    519,793.12x = 218,729,479,615.50
  5. Step 5: Solve for x
    x = 218,729,479,615.50/519,793.12
  6. Step 6: Final answer
    x = 420,801.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.