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Finding the Fourth Proportional to 618,791.66, 928,188.21 and 169,516.38

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Solution

The fourth proportional to 618,791.66, 928,188.21 and 169,516.38 is: 254,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,791.66 : 928,188.21 = 169,516.38 : x
  2. Step 2: Convert to fraction form
    618,791.66/928,188.21 = 169,516.38/x
  3. Step 3: Cross multiply
    618,791.66x = 928,188.21 × 169,516.38
  4. Step 4: Simplify right side
    618,791.66x = 157,343,105,317.88
  5. Step 5: Solve for x
    x = 157,343,105,317.88/618,791.66
  6. Step 6: Final answer
    x = 254,274.77

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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.