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Finding the Fourth Proportional to 399,813.57, 551,934 and 236,497.73

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Solution

The fourth proportional to 399,813.57, 551,934 and 236,497.73 is: 326,480.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,813.57 : 551,934 = 236,497.73 : x
  2. Step 2: Convert to fraction form
    399,813.57/551,934 = 236,497.73/x
  3. Step 3: Cross multiply
    399,813.57x = 551,934 × 236,497.73
  4. Step 4: Simplify right side
    399,813.57x = 130,531,135,350.15
  5. Step 5: Solve for x
    x = 130,531,135,350.15/399,813.57
  6. Step 6: Final answer
    x = 326,480.00

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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.