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Finding the Fourth Proportional to 361,335.59, 498,629.88 and 208,380.23

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Solution

The fourth proportional to 361,335.59, 498,629.88 and 208,380.23 is: 287,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,335.59 : 498,629.88 = 208,380.23 : x
  2. Step 2: Convert to fraction form
    361,335.59/498,629.88 = 208,380.23/x
  3. Step 3: Cross multiply
    361,335.59x = 498,629.88 × 208,380.23
  4. Step 4: Simplify right side
    361,335.59x = 103,904,609,079.27
  5. Step 5: Solve for x
    x = 103,904,609,079.27/361,335.59
  6. Step 6: Final answer
    x = 287,557.09

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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.