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Finding the Fourth Proportional to 543,948.86, 815,923.13 and 169,971.86

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Solution

The fourth proportional to 543,948.86, 815,923.13 and 169,971.86 is: 254,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,948.86 : 815,923.13 = 169,971.86 : x
  2. Step 2: Convert to fraction form
    543,948.86/815,923.13 = 169,971.86/x
  3. Step 3: Cross multiply
    543,948.86x = 815,923.13 × 169,971.86
  4. Step 4: Simplify right side
    543,948.86x = 138,683,967,093.65
  5. Step 5: Solve for x
    x = 138,683,967,093.65/543,948.86
  6. Step 6: Final answer
    x = 254,957.73

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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.