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Finding the Fourth Proportional to 477,591.78, 659,062.80 and 262,731.72

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Solution

The fourth proportional to 477,591.78, 659,062.80 and 262,731.72 is: 362,562.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,591.78 : 659,062.80 = 262,731.72 : x
  2. Step 2: Convert to fraction form
    477,591.78/659,062.80 = 262,731.72/x
  3. Step 3: Cross multiply
    477,591.78x = 659,062.80 × 262,731.72
  4. Step 4: Simplify right side
    477,591.78x = 173,156,703,032.02
  5. Step 5: Solve for x
    x = 173,156,703,032.02/477,591.78
  6. Step 6: Final answer
    x = 362,562.15

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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.