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Finding the Fourth Proportional to 439,522.20, 659,672.10 and 376,536.60

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Solution

The fourth proportional to 439,522.20, 659,672.10 and 376,536.60 is: 565,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,522.20 : 659,672.10 = 376,536.60 : x
  2. Step 2: Convert to fraction form
    439,522.20/659,672.10 = 376,536.60/x
  3. Step 3: Cross multiply
    439,522.20x = 659,672.10 × 376,536.60
  4. Step 4: Simplify right side
    439,522.20x = 248,390,689,648.86
  5. Step 5: Solve for x
    x = 248,390,689,648.86/439,522.20
  6. Step 6: Final answer
    x = 565,137.98

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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.