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Finding the Fourth Proportional to 517,793.58, 714,552.87 and 288,353.58

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Solution

The fourth proportional to 517,793.58, 714,552.87 and 288,353.58 is: 397,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,793.58 : 714,552.87 = 288,353.58 : x
  2. Step 2: Convert to fraction form
    517,793.58/714,552.87 = 288,353.58/x
  3. Step 3: Cross multiply
    517,793.58x = 714,552.87 × 288,353.58
  4. Step 4: Simplify right side
    517,793.58x = 206,043,878,163.78
  5. Step 5: Solve for x
    x = 206,043,878,163.78/517,793.58
  6. Step 6: Final answer
    x = 397,926.68

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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.