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Finding the Fourth Proportional to 693,448.66, 956,887.86 and 475,843.96

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Solution

The fourth proportional to 693,448.66, 956,887.86 and 475,843.96 is: 656,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,448.66 : 956,887.86 = 475,843.96 : x
  2. Step 2: Convert to fraction form
    693,448.66/956,887.86 = 475,843.96/x
  3. Step 3: Cross multiply
    693,448.66x = 956,887.86 × 475,843.96
  4. Step 4: Simplify right side
    693,448.66x = 455,329,308,578.33
  5. Step 5: Solve for x
    x = 455,329,308,578.33/693,448.66
  6. Step 6: Final answer
    x = 656,615.75

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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.