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Finding the Fourth Proportional to 544,986, 817,610.31 and 171,009

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Solution

The fourth proportional to 544,986, 817,610.31 and 171,009 is: 256,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,986 : 817,610.31 = 171,009 : x
  2. Step 2: Convert to fraction form
    544,986/817,610.31 = 171,009/x
  3. Step 3: Cross multiply
    544,986x = 817,610.31 × 171,009
  4. Step 4: Simplify right side
    544,986x = 139,818,721,502.79
  5. Step 5: Solve for x
    x = 139,818,721,502.79/544,986
  6. Step 6: Final answer
    x = 256,554.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.