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Finding the Fourth Proportional to 437,986, 604,420.68 and 236,782

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Solution

The fourth proportional to 437,986, 604,420.68 and 236,782 is: 326,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,986 : 604,420.68 = 236,782 : x
  2. Step 2: Convert to fraction form
    437,986/604,420.68 = 236,782/x
  3. Step 3: Cross multiply
    437,986x = 604,420.68 × 236,782
  4. Step 4: Simplify right side
    437,986x = 143,115,937,451.76
  5. Step 5: Solve for x
    x = 143,115,937,451.76/437,986
  6. Step 6: Final answer
    x = 326,759.16

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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.