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Finding the Fourth Proportional to 404,834.31, 558,720.63 and 235,068.48

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Solution

The fourth proportional to 404,834.31, 558,720.63 and 235,068.48 is: 324,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,834.31 : 558,720.63 = 235,068.48 : x
  2. Step 2: Convert to fraction form
    404,834.31/558,720.63 = 235,068.48/x
  3. Step 3: Cross multiply
    404,834.31x = 558,720.63 × 235,068.48
  4. Step 4: Simplify right side
    404,834.31x = 131,337,609,238.74
  5. Step 5: Solve for x
    x = 131,337,609,238.74/404,834.31
  6. Step 6: Final answer
    x = 324,423.12

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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.