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Finding the Fourth Proportional to 672,356.61, 927,836.15 and 366,442.65

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Solution

The fourth proportional to 672,356.61, 927,836.15 and 366,442.65 is: 505,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,356.61 : 927,836.15 = 366,442.65 : x
  2. Step 2: Convert to fraction form
    672,356.61/927,836.15 = 366,442.65/x
  3. Step 3: Cross multiply
    672,356.61x = 927,836.15 × 366,442.65
  4. Step 4: Simplify right side
    672,356.61x = 339,998,735,739.58
  5. Step 5: Solve for x
    x = 339,998,735,739.58/672,356.61
  6. Step 6: Final answer
    x = 505,682.15

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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.