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Finding the Fourth Proportional to 401,866.01, 554,582.24 and 220,594.79

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Solution

The fourth proportional to 401,866.01, 554,582.24 and 220,594.79 is: 304,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,866.01 : 554,582.24 = 220,594.79 : x
  2. Step 2: Convert to fraction form
    401,866.01/554,582.24 = 220,594.79/x
  3. Step 3: Cross multiply
    401,866.01x = 554,582.24 × 220,594.79
  4. Step 4: Simplify right side
    401,866.01x = 122,337,955,122.09
  5. Step 5: Solve for x
    x = 122,337,955,122.09/401,866.01
  6. Step 6: Final answer
    x = 304,424.74

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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.