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Finding the Fourth Proportional to 438,969.38, 605,777.74 and 237,765.38

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Solution

The fourth proportional to 438,969.38, 605,777.74 and 237,765.38 is: 328,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,969.38 : 605,777.74 = 237,765.38 : x
  2. Step 2: Convert to fraction form
    438,969.38/605,777.74 = 237,765.38/x
  3. Step 3: Cross multiply
    438,969.38x = 605,777.74 × 237,765.38
  4. Step 4: Simplify right side
    438,969.38x = 144,032,970,923.34
  5. Step 5: Solve for x
    x = 144,032,970,923.34/438,969.38
  6. Step 6: Final answer
    x = 328,116.22

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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.