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Finding the Fourth Proportional to 403,690.50, 557,092.89 and 224,842.50

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Solution

The fourth proportional to 403,690.50, 557,092.89 and 224,842.50 is: 310,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,690.50 : 557,092.89 = 224,842.50 : x
  2. Step 2: Convert to fraction form
    403,690.50/557,092.89 = 224,842.50/x
  3. Step 3: Cross multiply
    403,690.50x = 557,092.89 × 224,842.50
  4. Step 4: Simplify right side
    403,690.50x = 125,258,158,119.83
  5. Step 5: Solve for x
    x = 125,258,158,119.83/403,690.50
  6. Step 6: Final answer
    x = 310,282.65

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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.