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Finding the Fourth Proportional to 359,105.40, 538,010.10 and 171,703.80

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Solution

The fourth proportional to 359,105.40, 538,010.10 and 171,703.80 is: 257,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,105.40 : 538,010.10 = 171,703.80 : x
  2. Step 2: Convert to fraction form
    359,105.40/538,010.10 = 171,703.80/x
  3. Step 3: Cross multiply
    359,105.40x = 538,010.10 × 171,703.80
  4. Step 4: Simplify right side
    359,105.40x = 92,378,378,608.38
  5. Step 5: Solve for x
    x = 92,378,378,608.38/359,105.40
  6. Step 6: Final answer
    x = 257,245.86

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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.