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Finding the Fourth Proportional to 439,647.84, 606,714 and 238,443.84

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Solution

The fourth proportional to 439,647.84, 606,714 and 238,443.84 is: 329,052.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,647.84 : 606,714 = 238,443.84 : x
  2. Step 2: Convert to fraction form
    439,647.84/606,714 = 238,443.84/x
  3. Step 3: Cross multiply
    439,647.84x = 606,714 × 238,443.84
  4. Step 4: Simplify right side
    439,647.84x = 144,667,215,941.76
  5. Step 5: Solve for x
    x = 144,667,215,941.76/439,647.84
  6. Step 6: Final answer
    x = 329,052.49

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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.