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Finding the Fourth Proportional to 359,138.32, 495,614.09 and 197,999.08

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Solution

The fourth proportional to 359,138.32, 495,614.09 and 197,999.08 is: 273,240.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,138.32 : 495,614.09 = 197,999.08 : x
  2. Step 2: Convert to fraction form
    359,138.32/495,614.09 = 197,999.08/x
  3. Step 3: Cross multiply
    359,138.32x = 495,614.09 × 197,999.08
  4. Step 4: Simplify right side
    359,138.32x = 98,131,133,855.04
  5. Step 5: Solve for x
    x = 98,131,133,855.04/359,138.32
  6. Step 6: Final answer
    x = 273,240.50

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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.