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Finding the Fourth Proportional to 477,969.55, 659,597.79 and 263,108.50

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Solution

The fourth proportional to 477,969.55, 659,597.79 and 263,108.50 is: 363,089.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,969.55 : 659,597.79 = 263,108.50 : x
  2. Step 2: Convert to fraction form
    477,969.55/659,597.79 = 263,108.50/x
  3. Step 3: Cross multiply
    477,969.55x = 659,597.79 × 263,108.50
  4. Step 4: Simplify right side
    477,969.55x = 173,545,785,130.22
  5. Step 5: Solve for x
    x = 173,545,785,130.22/477,969.55
  6. Step 6: Final answer
    x = 363,089.63

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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.