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Finding the Fourth Proportional to 439,751.88, 606,871.14 and 248,761.80

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Solution

The fourth proportional to 439,751.88, 606,871.14 and 248,761.80 is: 343,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,751.88 : 606,871.14 = 248,761.80 : x
  2. Step 2: Convert to fraction form
    439,751.88/606,871.14 = 248,761.80/x
  3. Step 3: Cross multiply
    439,751.88x = 606,871.14 × 248,761.80
  4. Step 4: Simplify right side
    439,751.88x = 150,966,357,154.45
  5. Step 5: Solve for x
    x = 150,966,357,154.45/439,751.88
  6. Step 6: Final answer
    x = 343,298.95

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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.