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Finding the Fourth Proportional to 539,896.36, 745,052.61 and 298,195.50

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Solution

The fourth proportional to 539,896.36, 745,052.61 and 298,195.50 is: 411,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,896.36 : 745,052.61 = 298,195.50 : x
  2. Step 2: Convert to fraction form
    539,896.36/745,052.61 = 298,195.50/x
  3. Step 3: Cross multiply
    539,896.36x = 745,052.61 × 298,195.50
  4. Step 4: Simplify right side
    539,896.36x = 222,171,335,565.26
  5. Step 5: Solve for x
    x = 222,171,335,565.26/539,896.36
  6. Step 6: Final answer
    x = 411,507.38

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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.