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Finding the Fourth Proportional to 477,900.25, 659,502.56 and 263,038.79

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Solution

The fourth proportional to 477,900.25, 659,502.56 and 263,038.79 is: 362,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,900.25 : 659,502.56 = 263,038.79 : x
  2. Step 2: Convert to fraction form
    477,900.25/659,502.56 = 263,038.79/x
  3. Step 3: Cross multiply
    477,900.25x = 659,502.56 × 263,038.79
  4. Step 4: Simplify right side
    477,900.25x = 173,474,755,384.30
  5. Step 5: Solve for x
    x = 173,474,755,384.30/477,900.25
  6. Step 6: Final answer
    x = 362,993.65

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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.