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Finding the Fourth Proportional to 404,495.70, 558,315.09 and 234,784.50

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Solution

The fourth proportional to 404,495.70, 558,315.09 and 234,784.50 is: 324,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,495.70 : 558,315.09 = 234,784.50 : x
  2. Step 2: Convert to fraction form
    404,495.70/558,315.09 = 234,784.50/x
  3. Step 3: Cross multiply
    404,495.70x = 558,315.09 × 234,784.50
  4. Step 4: Simplify right side
    404,495.70x = 131,083,729,248.11
  5. Step 5: Solve for x
    x = 131,083,729,248.11/404,495.70
  6. Step 6: Final answer
    x = 324,067.05

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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.