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Finding the Fourth Proportional to 695,146.67, 959,275.83 and 389,194.43

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Solution

The fourth proportional to 695,146.67, 959,275.83 and 389,194.43 is: 537,073.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,146.67 : 959,275.83 = 389,194.43 : x
  2. Step 2: Convert to fraction form
    695,146.67/959,275.83 = 389,194.43/x
  3. Step 3: Cross multiply
    695,146.67x = 959,275.83 × 389,194.43
  4. Step 4: Simplify right side
    695,146.67x = 373,344,809,869.63
  5. Step 5: Solve for x
    x = 373,344,809,869.63/695,146.67
  6. Step 6: Final answer
    x = 537,073.43

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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.