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Finding the Fourth Proportional to 438,503.36, 605,119.54 and 244,921.28

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Solution

The fourth proportional to 438,503.36, 605,119.54 and 244,921.28 is: 337,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,503.36 : 605,119.54 = 244,921.28 : x
  2. Step 2: Convert to fraction form
    438,503.36/605,119.54 = 244,921.28/x
  3. Step 3: Cross multiply
    438,503.36x = 605,119.54 × 244,921.28
  4. Step 4: Simplify right side
    438,503.36x = 148,206,652,289.81
  5. Step 5: Solve for x
    x = 148,206,652,289.81/438,503.36
  6. Step 6: Final answer
    x = 337,982.93

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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.