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Finding the Fourth Proportional to 439,772.56, 606,887.30 and 238,568.56

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Solution

The fourth proportional to 439,772.56, 606,887.30 and 238,568.56 is: 329,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,772.56 : 606,887.30 = 238,568.56 : x
  2. Step 2: Convert to fraction form
    439,772.56/606,887.30 = 238,568.56/x
  3. Step 3: Cross multiply
    439,772.56x = 606,887.30 × 238,568.56
  4. Step 4: Simplify right side
    439,772.56x = 144,784,229,243.29
  5. Step 5: Solve for x
    x = 144,784,229,243.29/439,772.56
  6. Step 6: Final answer
    x = 329,225.25

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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.