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Finding the Fourth Proportional to 401,871.78, 554,590.24 and 220,600.58

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Solution

The fourth proportional to 401,871.78, 554,590.24 and 220,600.58 is: 304,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,871.78 : 554,590.24 = 220,600.58 : x
  2. Step 2: Convert to fraction form
    401,871.78/554,590.24 = 220,600.58/x
  3. Step 3: Cross multiply
    401,871.78x = 554,590.24 × 220,600.58
  4. Step 4: Simplify right side
    401,871.78x = 122,342,928,606.34
  5. Step 5: Solve for x
    x = 122,342,928,606.34/401,871.78
  6. Step 6: Final answer
    x = 304,432.74

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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.