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Finding the Fourth Proportional to 373,499.76, 515,408.94 and 212,332.44

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Solution

The fourth proportional to 373,499.76, 515,408.94 and 212,332.44 is: 293,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,499.76 : 515,408.94 = 212,332.44 : x
  2. Step 2: Convert to fraction form
    373,499.76/515,408.94 = 212,332.44/x
  3. Step 3: Cross multiply
    373,499.76x = 515,408.94 × 212,332.44
  4. Step 4: Simplify right side
    373,499.76x = 109,438,037,828.01
  5. Step 5: Solve for x
    x = 109,438,037,828.01/373,499.76
  6. Step 6: Final answer
    x = 293,006.98

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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.