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Finding the Fourth Proportional to 696,335.05, 960,894.26 and 386,208.37

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Solution

The fourth proportional to 696,335.05, 960,894.26 and 386,208.37 is: 532,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,335.05 : 960,894.26 = 386,208.37 : x
  2. Step 2: Convert to fraction form
    696,335.05/960,894.26 = 386,208.37/x
  3. Step 3: Cross multiply
    696,335.05x = 960,894.26 × 386,208.37
  4. Step 4: Simplify right side
    696,335.05x = 371,105,409,456.85
  5. Step 5: Solve for x
    x = 371,105,409,456.85/696,335.05
  6. Step 6: Final answer
    x = 532,940.87

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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.