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Finding the Fourth Proportional to 535,671.13, 739,237.31 and 293,939.59

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Solution

The fourth proportional to 535,671.13, 739,237.31 and 293,939.59 is: 405,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,671.13 : 739,237.31 = 293,939.59 : x
  2. Step 2: Convert to fraction form
    535,671.13/739,237.31 = 293,939.59/x
  3. Step 3: Cross multiply
    535,671.13x = 739,237.31 × 293,939.59
  4. Step 4: Simplify right side
    535,671.13x = 217,291,111,814.10
  5. Step 5: Solve for x
    x = 217,291,111,814.10/535,671.13
  6. Step 6: Final answer
    x = 405,642.75

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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.