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Finding the Fourth Proportional to 403,281.27, 556,217.31 and 250,409.97

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Solution

The fourth proportional to 403,281.27, 556,217.31 and 250,409.97 is: 345,372.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,281.27 : 556,217.31 = 250,409.97 : x
  2. Step 2: Convert to fraction form
    403,281.27/556,217.31 = 250,409.97/x
  3. Step 3: Cross multiply
    403,281.27x = 556,217.31 × 250,409.97
  4. Step 4: Simplify right side
    403,281.27x = 139,282,361,057.36
  5. Step 5: Solve for x
    x = 139,282,361,057.36/403,281.27
  6. Step 6: Final answer
    x = 345,372.75

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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.