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Finding the Fourth Proportional to 439,218.26, 606,121.90 and 238,014.26

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Solution

The fourth proportional to 439,218.26, 606,121.90 and 238,014.26 is: 328,460.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,218.26 : 606,121.90 = 238,014.26 : x
  2. Step 2: Convert to fraction form
    439,218.26/606,121.90 = 238,014.26/x
  3. Step 3: Cross multiply
    439,218.26x = 606,121.90 × 238,014.26
  4. Step 4: Simplify right side
    439,218.26x = 144,265,655,498.29
  5. Step 5: Solve for x
    x = 144,265,655,498.29/439,218.26
  6. Step 6: Final answer
    x = 328,460.06

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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.