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Finding the Fourth Proportional to 539,644.56, 744,961.48 and 313,246.48

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Solution

The fourth proportional to 539,644.56, 744,961.48 and 313,246.48 is: 432,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,644.56 : 744,961.48 = 313,246.48 : x
  2. Step 2: Convert to fraction form
    539,644.56/744,961.48 = 313,246.48/x
  3. Step 3: Cross multiply
    539,644.56x = 744,961.48 × 313,246.48
  4. Step 4: Simplify right side
    539,644.56x = 233,356,561,345.59
  5. Step 5: Solve for x
    x = 233,356,561,345.59/539,644.56
  6. Step 6: Final answer
    x = 432,426.41

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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.