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Finding the Fourth Proportional to 401,747.48, 554,410 and 220,462.44

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Solution

The fourth proportional to 401,747.48, 554,410 and 220,462.44 is: 304,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,747.48 : 554,410 = 220,462.44 : x
  2. Step 2: Convert to fraction form
    401,747.48/554,410 = 220,462.44/x
  3. Step 3: Cross multiply
    401,747.48x = 554,410 × 220,462.44
  4. Step 4: Simplify right side
    401,747.48x = 122,226,581,360.40
  5. Step 5: Solve for x
    x = 122,226,581,360.40/401,747.48
  6. Step 6: Final answer
    x = 304,237.33

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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.