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Finding the Fourth Proportional to 438,033.27, 657,055.17 and 171,919.11

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Solution

The fourth proportional to 438,033.27, 657,055.17 and 171,919.11 is: 257,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,033.27 : 657,055.17 = 171,919.11 : x
  2. Step 2: Convert to fraction form
    438,033.27/657,055.17 = 171,919.11/x
  3. Step 3: Cross multiply
    438,033.27x = 657,055.17 × 171,919.11
  4. Step 4: Simplify right side
    438,033.27x = 112,960,340,047.30
  5. Step 5: Solve for x
    x = 112,960,340,047.30/438,033.27
  6. Step 6: Final answer
    x = 257,880.73

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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.