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Finding the Fourth Proportional to 403,862.32, 557,333.80 and 222,580.88

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Solution

The fourth proportional to 403,862.32, 557,333.80 and 222,580.88 is: 307,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,862.32 : 557,333.80 = 222,580.88 : x
  2. Step 2: Convert to fraction form
    403,862.32/557,333.80 = 222,580.88/x
  3. Step 3: Cross multiply
    403,862.32x = 557,333.80 × 222,580.88
  4. Step 4: Simplify right side
    403,862.32x = 124,051,847,657.74
  5. Step 5: Solve for x
    x = 124,051,847,657.74/403,862.32
  6. Step 6: Final answer
    x = 307,163.71

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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.