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Finding the Fourth Proportional to 479,318.88, 661,480.06 and 264,472.86

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Solution

The fourth proportional to 479,318.88, 661,480.06 and 264,472.86 is: 364,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,318.88 : 661,480.06 = 264,472.86 : x
  2. Step 2: Convert to fraction form
    479,318.88/661,480.06 = 264,472.86/x
  3. Step 3: Cross multiply
    479,318.88x = 661,480.06 × 264,472.86
  4. Step 4: Simplify right side
    479,318.88x = 174,943,523,301.17
  5. Step 5: Solve for x
    x = 174,943,523,301.17/479,318.88
  6. Step 6: Final answer
    x = 364,983.59

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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.