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Finding the Fourth Proportional to 465,911.11, 642,950.21 and 261,962.22

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Solution

The fourth proportional to 465,911.11, 642,950.21 and 261,962.22 is: 361,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,911.11 : 642,950.21 = 261,962.22 : x
  2. Step 2: Convert to fraction form
    465,911.11/642,950.21 = 261,962.22/x
  3. Step 3: Cross multiply
    465,911.11x = 642,950.21 × 261,962.22
  4. Step 4: Simplify right side
    465,911.11x = 168,428,664,361.07
  5. Step 5: Solve for x
    x = 168,428,664,361.07/465,911.11
  6. Step 6: Final answer
    x = 361,503.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.