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Finding the Fourth Proportional to 359,358.32, 538,879.68 and 134,561.12

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Solution

The fourth proportional to 359,358.32, 538,879.68 and 134,561.12 is: 201,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,358.32 : 538,879.68 = 134,561.12 : x
  2. Step 2: Convert to fraction form
    359,358.32/538,879.68 = 134,561.12/x
  3. Step 3: Cross multiply
    359,358.32x = 538,879.68 × 134,561.12
  4. Step 4: Simplify right side
    359,358.32x = 72,512,253,286.04
  5. Step 5: Solve for x
    x = 72,512,253,286.04/359,358.32
  6. Step 6: Final answer
    x = 201,782.59

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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.