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Finding the Fourth Proportional to 366,781.74, 505,693.71 and 262,130.79

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Solution

The fourth proportional to 366,781.74, 505,693.71 and 262,130.79 is: 361,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,781.74 : 505,693.71 = 262,130.79 : x
  2. Step 2: Convert to fraction form
    366,781.74/505,693.71 = 262,130.79/x
  3. Step 3: Cross multiply
    366,781.74x = 505,693.71 × 262,130.79
  4. Step 4: Simplify right side
    366,781.74x = 132,557,891,700.33
  5. Step 5: Solve for x
    x = 132,557,891,700.33/366,781.74
  6. Step 6: Final answer
    x = 361,408.10

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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.