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Finding the Fourth Proportional to 444,792.20, 665,633.10 and 407,467.40

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Solution

The fourth proportional to 444,792.20, 665,633.10 and 407,467.40 is: 609,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,792.20 : 665,633.10 = 407,467.40 : x
  2. Step 2: Convert to fraction form
    444,792.20/665,633.10 = 407,467.40/x
  3. Step 3: Cross multiply
    444,792.20x = 665,633.10 × 407,467.40
  4. Step 4: Simplify right side
    444,792.20x = 271,223,788,610.94
  5. Step 5: Solve for x
    x = 271,223,788,610.94/444,792.20
  6. Step 6: Final answer
    x = 609,776.40

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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.