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Finding the Fourth Proportional to 672,617.75, 927,687.63 and 430,922.82

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Solution

The fourth proportional to 672,617.75, 927,687.63 and 430,922.82 is: 594,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,617.75 : 927,687.63 = 430,922.82 : x
  2. Step 2: Convert to fraction form
    672,617.75/927,687.63 = 430,922.82/x
  3. Step 3: Cross multiply
    672,617.75x = 927,687.63 × 430,922.82
  4. Step 4: Simplify right side
    672,617.75x = 399,761,769,598.72
  5. Step 5: Solve for x
    x = 399,761,769,598.72/672,617.75
  6. Step 6: Final answer
    x = 594,337.23

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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.