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Finding the Fourth Proportional to 454,937.40, 682,406.10 and 349,961.40

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Solution

The fourth proportional to 454,937.40, 682,406.10 and 349,961.40 is: 524,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,937.40 : 682,406.10 = 349,961.40 : x
  2. Step 2: Convert to fraction form
    454,937.40/682,406.10 = 349,961.40/x
  3. Step 3: Cross multiply
    454,937.40x = 682,406.10 × 349,961.40
  4. Step 4: Simplify right side
    454,937.40x = 238,815,794,124.54
  5. Step 5: Solve for x
    x = 238,815,794,124.54/454,937.40
  6. Step 6: Final answer
    x = 524,942.10

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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.