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Finding the Fourth Proportional to 477,655.40, 659,164.42 and 262,790.85

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Solution

The fourth proportional to 477,655.40, 659,164.42 and 262,790.85 is: 362,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,655.40 : 659,164.42 = 262,790.85 : x
  2. Step 2: Convert to fraction form
    477,655.40/659,164.42 = 262,790.85/x
  3. Step 3: Cross multiply
    477,655.40x = 659,164.42 × 262,790.85
  4. Step 4: Simplify right side
    477,655.40x = 173,222,378,221.56
  5. Step 5: Solve for x
    x = 173,222,378,221.56/477,655.40
  6. Step 6: Final answer
    x = 362,651.36

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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.