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Finding the Fourth Proportional to 439,107.51, 605,968.25 and 237,903.51

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Solution

The fourth proportional to 439,107.51, 605,968.25 and 237,903.51 is: 328,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,107.51 : 605,968.25 = 237,903.51 : x
  2. Step 2: Convert to fraction form
    439,107.51/605,968.25 = 237,903.51/x
  3. Step 3: Cross multiply
    439,107.51x = 605,968.25 × 237,903.51
  4. Step 4: Simplify right side
    439,107.51x = 144,161,972,434.04
  5. Step 5: Solve for x
    x = 144,161,972,434.04/439,107.51
  6. Step 6: Final answer
    x = 328,306.78

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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.