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Finding the Fourth Proportional to 329,076.20, 493,614.29 and 79,758.20

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Solution

The fourth proportional to 329,076.20, 493,614.29 and 79,758.20 is: 119,637.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,076.20 : 493,614.29 = 79,758.20 : x
  2. Step 2: Convert to fraction form
    329,076.20/493,614.29 = 79,758.20/x
  3. Step 3: Cross multiply
    329,076.20x = 493,614.29 × 79,758.20
  4. Step 4: Simplify right side
    329,076.20x = 39,369,784,397.82
  5. Step 5: Solve for x
    x = 39,369,784,397.82/329,076.20
  6. Step 6: Final answer
    x = 119,637.29

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1.5x scale

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.