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Finding the Fourth Proportional to 479,373.76, 661,535.28 and 264,513.76

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Solution

The fourth proportional to 479,373.76, 661,535.28 and 264,513.76 is: 365,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,373.76 : 661,535.28 = 264,513.76 : x
  2. Step 2: Convert to fraction form
    479,373.76/661,535.28 = 264,513.76/x
  3. Step 3: Cross multiply
    479,373.76x = 661,535.28 × 264,513.76
  4. Step 4: Simplify right side
    479,373.76x = 174,985,184,285.45
  5. Step 5: Solve for x
    x = 174,985,184,285.45/479,373.76
  6. Step 6: Final answer
    x = 365,028.71

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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.