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Finding the Fourth Proportional to 319,793.36, 479,646.32 and 95,188.46

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Solution

The fourth proportional to 319,793.36, 479,646.32 and 95,188.46 is: 142,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,793.36 : 479,646.32 = 95,188.46 : x
  2. Step 2: Convert to fraction form
    319,793.36/479,646.32 = 95,188.46/x
  3. Step 3: Cross multiply
    319,793.36x = 479,646.32 × 95,188.46
  4. Step 4: Simplify right side
    319,793.36x = 45,656,794,545.47
  5. Step 5: Solve for x
    x = 45,656,794,545.47/319,793.36
  6. Step 6: Final answer
    x = 142,769.68

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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.