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Finding the Fourth Proportional to 438,588.64, 605,187.89 and 244,972.49

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Solution

The fourth proportional to 438,588.64, 605,187.89 and 244,972.49 is: 338,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,588.64 : 605,187.89 = 244,972.49 : x
  2. Step 2: Convert to fraction form
    438,588.64/605,187.89 = 244,972.49/x
  3. Step 3: Cross multiply
    438,588.64x = 605,187.89 × 244,972.49
  4. Step 4: Simplify right side
    438,588.64x = 148,254,384,331.15
  5. Step 5: Solve for x
    x = 148,254,384,331.15/438,588.64
  6. Step 6: Final answer
    x = 338,026.05

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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.