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Finding the Fourth Proportional to 667,934.03, 999,536.01 and 415,333.48

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Solution

The fourth proportional to 667,934.03, 999,536.01 and 415,333.48 is: 621,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,934.03 : 999,536.01 = 415,333.48 : x
  2. Step 2: Convert to fraction form
    667,934.03/999,536.01 = 415,333.48/x
  3. Step 3: Cross multiply
    667,934.03x = 999,536.01 × 415,333.48
  4. Step 4: Simplify right side
    667,934.03x = 415,140,769,418.62
  5. Step 5: Solve for x
    x = 415,140,769,418.62/667,934.03
  6. Step 6: Final answer
    x = 621,529.60

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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.