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Finding the Fourth Proportional to 479,633.13, 661,893.93 and 264,773.61

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Solution

The fourth proportional to 479,633.13, 661,893.93 and 264,773.61 is: 365,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,633.13 : 661,893.93 = 264,773.61 : x
  2. Step 2: Convert to fraction form
    479,633.13/661,893.93 = 264,773.61/x
  3. Step 3: Cross multiply
    479,633.13x = 661,893.93 × 264,773.61
  4. Step 4: Simplify right side
    479,633.13x = 175,252,045,283.19
  5. Step 5: Solve for x
    x = 175,252,045,283.19/479,633.13
  6. Step 6: Final answer
    x = 365,387.70

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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.