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Finding the Fourth Proportional to 672,314.80, 927,782.04 and 366,393.64

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Solution

The fourth proportional to 672,314.80, 927,782.04 and 366,393.64 is: 505,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,314.80 : 927,782.04 = 366,393.64 : x
  2. Step 2: Convert to fraction form
    672,314.80/927,782.04 = 366,393.64/x
  3. Step 3: Cross multiply
    672,314.80x = 927,782.04 × 366,393.64
  4. Step 4: Simplify right side
    672,314.80x = 339,933,438,762.23
  5. Step 5: Solve for x
    x = 339,933,438,762.23/672,314.80
  6. Step 6: Final answer
    x = 505,616.47

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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.