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Finding the Fourth Proportional to 404,967.16, 558,860.56 and 235,201.28

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Solution

The fourth proportional to 404,967.16, 558,860.56 and 235,201.28 is: 324,581.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,967.16 : 558,860.56 = 235,201.28 : x
  2. Step 2: Convert to fraction form
    404,967.16/558,860.56 = 235,201.28/x
  3. Step 3: Cross multiply
    404,967.16x = 558,860.56 × 235,201.28
  4. Step 4: Simplify right side
    404,967.16x = 131,444,719,053.52
  5. Step 5: Solve for x
    x = 131,444,719,053.52/404,967.16
  6. Step 6: Final answer
    x = 324,581.18

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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.