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Finding the Fourth Proportional to 359,169.12, 495,707.04 and 215,993.52

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Solution

The fourth proportional to 359,169.12, 495,707.04 and 215,993.52 is: 298,103.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,169.12 : 495,707.04 = 215,993.52 : x
  2. Step 2: Convert to fraction form
    359,169.12/495,707.04 = 215,993.52/x
  3. Step 3: Cross multiply
    359,169.12x = 495,707.04 × 215,993.52
  4. Step 4: Simplify right side
    359,169.12x = 107,069,508,458.38
  5. Step 5: Solve for x
    x = 107,069,508,458.38/359,169.12
  6. Step 6: Final answer
    x = 298,103.32

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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.