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Finding the Fourth Proportional to 361,055.61, 498,272.31 and 199,910.64

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Solution

The fourth proportional to 361,055.61, 498,272.31 and 199,910.64 is: 275,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,055.61 : 498,272.31 = 199,910.64 : x
  2. Step 2: Convert to fraction form
    361,055.61/498,272.31 = 199,910.64/x
  3. Step 3: Cross multiply
    361,055.61x = 498,272.31 × 199,910.64
  4. Step 4: Simplify right side
    361,055.61x = 99,609,936,386.38
  5. Step 5: Solve for x
    x = 99,609,936,386.38/361,055.61
  6. Step 6: Final answer
    x = 275,885.30

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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.