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Finding the Fourth Proportional to 496,578.61, 744,874.78 and 141,592.59

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Solution

The fourth proportional to 496,578.61, 744,874.78 and 141,592.59 is: 212,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,578.61 : 744,874.78 = 141,592.59 : x
  2. Step 2: Convert to fraction form
    496,578.61/744,874.78 = 141,592.59/x
  3. Step 3: Cross multiply
    496,578.61x = 744,874.78 × 141,592.59
  4. Step 4: Simplify right side
    496,578.61x = 105,468,749,325.88
  5. Step 5: Solve for x
    x = 105,468,749,325.88/496,578.61
  6. Step 6: Final answer
    x = 212,390.84

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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.