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Finding the Fourth Proportional to 403,874.26, 557,344.65 and 222,585.79

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Solution

The fourth proportional to 403,874.26, 557,344.65 and 222,585.79 is: 307,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,874.26 : 557,344.65 = 222,585.79 : x
  2. Step 2: Convert to fraction form
    403,874.26/557,344.65 = 222,585.79/x
  3. Step 3: Cross multiply
    403,874.26x = 557,344.65 × 222,585.79
  4. Step 4: Simplify right side
    403,874.26x = 124,056,999,222.52
  5. Step 5: Solve for x
    x = 124,056,999,222.52/403,874.26
  6. Step 6: Final answer
    x = 307,167.38

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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.