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Finding the Fourth Proportional to 394,610.61, 544,710.73 and 258,653.32

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Solution

The fourth proportional to 394,610.61, 544,710.73 and 258,653.32 is: 357,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,610.61 : 544,710.73 = 258,653.32 : x
  2. Step 2: Convert to fraction form
    394,610.61/544,710.73 = 258,653.32/x
  3. Step 3: Cross multiply
    394,610.61x = 544,710.73 × 258,653.32
  4. Step 4: Simplify right side
    394,610.61x = 140,891,238,754.12
  5. Step 5: Solve for x
    x = 140,891,238,754.12/394,610.61
  6. Step 6: Final answer
    x = 357,038.65

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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.