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Finding the Fourth Proportional to 696,756.36, 961,523.10 and 394,950.36

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Solution

The fourth proportional to 696,756.36, 961,523.10 and 394,950.36 is: 545,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,756.36 : 961,523.10 = 394,950.36 : x
  2. Step 2: Convert to fraction form
    696,756.36/961,523.10 = 394,950.36/x
  3. Step 3: Cross multiply
    696,756.36x = 961,523.10 × 394,950.36
  4. Step 4: Simplify right side
    696,756.36x = 379,753,894,493.32
  5. Step 5: Solve for x
    x = 379,753,894,493.32/696,756.36
  6. Step 6: Final answer
    x = 545,031.11

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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.