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Finding the Fourth Proportional to 482,408.48, 723,647.55 and 127,417.88

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Solution

The fourth proportional to 482,408.48, 723,647.55 and 127,417.88 is: 191,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,408.48 : 723,647.55 = 127,417.88 : x
  2. Step 2: Convert to fraction form
    482,408.48/723,647.55 = 127,417.88/x
  3. Step 3: Cross multiply
    482,408.48x = 723,647.55 × 127,417.88
  4. Step 4: Simplify right side
    482,408.48x = 92,205,633,069.96
  5. Step 5: Solve for x
    x = 92,205,633,069.96/482,408.48
  6. Step 6: Final answer
    x = 191,136.01

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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.