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Finding the Fourth Proportional to 445,633.68, 614,935.89 and 261,852.78

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Solution

The fourth proportional to 445,633.68, 614,935.89 and 261,852.78 is: 361,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,633.68 : 614,935.89 = 261,852.78 : x
  2. Step 2: Convert to fraction form
    445,633.68/614,935.89 = 261,852.78/x
  3. Step 3: Cross multiply
    445,633.68x = 614,935.89 × 261,852.78
  4. Step 4: Simplify right side
    445,633.68x = 161,022,672,318.27
  5. Step 5: Solve for x
    x = 161,022,672,318.27/445,633.68
  6. Step 6: Final answer
    x = 361,334.16

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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.