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Finding the Fourth Proportional to 438,682.91, 605,371.25 and 245,092.10

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Solution

The fourth proportional to 438,682.91, 605,371.25 and 245,092.10 is: 338,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,682.91 : 605,371.25 = 245,092.10 : x
  2. Step 2: Convert to fraction form
    438,682.91/605,371.25 = 245,092.10/x
  3. Step 3: Cross multiply
    438,682.91x = 605,371.25 × 245,092.10
  4. Step 4: Simplify right side
    438,682.91x = 148,371,708,528.00
  5. Step 5: Solve for x
    x = 148,371,708,528.00/438,682.91
  6. Step 6: Final answer
    x = 338,220.86

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1.5x scale

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.