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Finding the Fourth Proportional to 348,758.84, 521,778.58 and 305,722.63

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Solution

The fourth proportional to 348,758.84, 521,778.58 and 305,722.63 is: 457,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,758.84 : 521,778.58 = 305,722.63 : x
  2. Step 2: Convert to fraction form
    348,758.84/521,778.58 = 305,722.63/x
  3. Step 3: Cross multiply
    348,758.84x = 521,778.58 × 305,722.63
  4. Step 4: Simplify right side
    348,758.84x = 159,519,519,755.27
  5. Step 5: Solve for x
    x = 159,519,519,755.27/348,758.84
  6. Step 6: Final answer
    x = 457,392.05

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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.