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Finding the Fourth Proportional to 439,667.17, 659,579.74 and 155,522.41

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Solution

The fourth proportional to 439,667.17, 659,579.74 and 155,522.41 is: 233,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,667.17 : 659,579.74 = 155,522.41 : x
  2. Step 2: Convert to fraction form
    439,667.17/659,579.74 = 155,522.41/x
  3. Step 3: Cross multiply
    439,667.17x = 659,579.74 × 155,522.41
  4. Step 4: Simplify right side
    439,667.17x = 102,579,428,714.22
  5. Step 5: Solve for x
    x = 102,579,428,714.22/439,667.17
  6. Step 6: Final answer
    x = 233,311.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.