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Finding the Fourth Proportional to 438,840.75, 605,600.24 and 237,636.75

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Solution

The fourth proportional to 438,840.75, 605,600.24 and 237,636.75 is: 327,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,840.75 : 605,600.24 = 237,636.75 : x
  2. Step 2: Convert to fraction form
    438,840.75/605,600.24 = 237,636.75/x
  3. Step 3: Cross multiply
    438,840.75x = 605,600.24 × 237,636.75
  4. Step 4: Simplify right side
    438,840.75x = 143,912,871,644.64
  5. Step 5: Solve for x
    x = 143,912,871,644.64/438,840.75
  6. Step 6: Final answer
    x = 327,938.72

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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.