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Finding the Fourth Proportional to 337,408.20, 506,306.70 and 127,067.40

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Solution

The fourth proportional to 337,408.20, 506,306.70 and 127,067.40 is: 190,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,408.20 : 506,306.70 = 127,067.40 : x
  2. Step 2: Convert to fraction form
    337,408.20/506,306.70 = 127,067.40/x
  3. Step 3: Cross multiply
    337,408.20x = 506,306.70 × 127,067.40
  4. Step 4: Simplify right side
    337,408.20x = 64,335,075,971.58
  5. Step 5: Solve for x
    x = 64,335,075,971.58/337,408.20
  6. Step 6: Final answer
    x = 190,674.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.