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Finding the Fourth Proportional to 695,093.55, 959,309.91 and 423,320.73

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Solution

The fourth proportional to 695,093.55, 959,309.91 and 423,320.73 is: 584,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,093.55 : 959,309.91 = 423,320.73 : x
  2. Step 2: Convert to fraction form
    695,093.55/959,309.91 = 423,320.73/x
  3. Step 3: Cross multiply
    695,093.55x = 959,309.91 × 423,320.73
  4. Step 4: Simplify right side
    695,093.55x = 406,095,771,397.43
  5. Step 5: Solve for x
    x = 406,095,771,397.43/695,093.55
  6. Step 6: Final answer
    x = 584,231.82

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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.