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Finding the Fourth Proportional to 694,585.08, 958,676.31 and 422,740.53

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Solution

The fourth proportional to 694,585.08, 958,676.31 and 422,740.53 is: 583,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,585.08 : 958,676.31 = 422,740.53 : x
  2. Step 2: Convert to fraction form
    694,585.08/958,676.31 = 422,740.53/x
  3. Step 3: Cross multiply
    694,585.08x = 958,676.31 × 422,740.53
  4. Step 4: Simplify right side
    694,585.08x = 405,271,331,387.84
  5. Step 5: Solve for x
    x = 405,271,331,387.84/694,585.08
  6. Step 6: Final answer
    x = 583,472.56

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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.