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Finding the Fourth Proportional to 968,469.21, 1,335,691.62 and 859,653

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Solution

The fourth proportional to 968,469.21, 1,335,691.62 and 859,653 is: 1,185,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,469.21 : 1,335,691.62 = 859,653 : x
  2. Step 2: Convert to fraction form
    968,469.21/1,335,691.62 = 859,653/x
  3. Step 3: Cross multiply
    968,469.21x = 1,335,691.62 × 859,653
  4. Step 4: Simplify right side
    968,469.21x = 1,148,231,308,207.86
  5. Step 5: Solve for x
    x = 1,148,231,308,207.86/968,469.21
  6. Step 6: Final answer
    x = 1,185,614.68

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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.