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Finding the Fourth Proportional to 471,145.20, 705,940.20 and 401,161.20

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Solution

The fourth proportional to 471,145.20, 705,940.20 and 401,161.20 is: 601,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,145.20 : 705,940.20 = 401,161.20 : x
  2. Step 2: Convert to fraction form
    471,145.20/705,940.20 = 401,161.20/x
  3. Step 3: Cross multiply
    471,145.20x = 705,940.20 × 401,161.20
  4. Step 4: Simplify right side
    471,145.20x = 283,195,817,760.24
  5. Step 5: Solve for x
    x = 283,195,817,760.24/471,145.20
  6. Step 6: Final answer
    x = 601,079.70

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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.