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Finding the Fourth Proportional to 439,606.34, 606,657.09 and 238,402.34

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Solution

The fourth proportional to 439,606.34, 606,657.09 and 238,402.34 is: 328,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,606.34 : 606,657.09 = 238,402.34 : x
  2. Step 2: Convert to fraction form
    439,606.34/606,657.09 = 238,402.34/x
  3. Step 3: Cross multiply
    439,606.34x = 606,657.09 × 238,402.34
  4. Step 4: Simplify right side
    439,606.34x = 144,628,469,833.59
  5. Step 5: Solve for x
    x = 144,628,469,833.59/439,606.34
  6. Step 6: Final answer
    x = 328,995.41

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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.