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Finding the Fourth Proportional to 404,486.20, 558,301.98 and 234,775

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Solution

The fourth proportional to 404,486.20, 558,301.98 and 234,775 is: 324,053.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,486.20 : 558,301.98 = 234,775 : x
  2. Step 2: Convert to fraction form
    404,486.20/558,301.98 = 234,775/x
  3. Step 3: Cross multiply
    404,486.20x = 558,301.98 × 234,775
  4. Step 4: Simplify right side
    404,486.20x = 131,075,347,354.50
  5. Step 5: Solve for x
    x = 131,075,347,354.50/404,486.20
  6. Step 6: Final answer
    x = 324,053.94

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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.