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Finding the Fourth Proportional to 729,879.08, 1,007,013 and 423,896.48

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Solution

The fourth proportional to 729,879.08, 1,007,013 and 423,896.48 is: 584,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,879.08 : 1,007,013 = 423,896.48 : x
  2. Step 2: Convert to fraction form
    729,879.08/1,007,013 = 423,896.48/x
  3. Step 3: Cross multiply
    729,879.08x = 1,007,013 × 423,896.48
  4. Step 4: Simplify right side
    729,879.08x = 426,869,266,014.24
  5. Step 5: Solve for x
    x = 426,869,266,014.24/729,879.08
  6. Step 6: Final answer
    x = 584,849.30

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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.