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Finding the Fourth Proportional to 672,342.64, 927,809.30 and 366,412.82

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Solution

The fourth proportional to 672,342.64, 927,809.30 and 366,412.82 is: 505,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,342.64 : 927,809.30 = 366,412.82 : x
  2. Step 2: Convert to fraction form
    672,342.64/927,809.30 = 366,412.82/x
  3. Step 3: Cross multiply
    672,342.64x = 927,809.30 × 366,412.82
  4. Step 4: Simplify right side
    672,342.64x = 339,961,222,035.23
  5. Step 5: Solve for x
    x = 339,961,222,035.23/672,342.64
  6. Step 6: Final answer
    x = 505,636.86

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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.