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Finding the Fourth Proportional to 359,163.56, 495,667.98 and 198,018.30

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Solution

The fourth proportional to 359,163.56, 495,667.98 and 198,018.30 is: 273,277.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,163.56 : 495,667.98 = 198,018.30 : x
  2. Step 2: Convert to fraction form
    359,163.56/495,667.98 = 198,018.30/x
  3. Step 3: Cross multiply
    359,163.56x = 495,667.98 × 198,018.30
  4. Step 4: Simplify right side
    359,163.56x = 98,151,330,764.03
  5. Step 5: Solve for x
    x = 98,151,330,764.03/359,163.56
  6. Step 6: Final answer
    x = 273,277.53

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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.