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Finding the Fourth Proportional to 672,318.48, 927,782.42 and 366,402.74

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Solution

The fourth proportional to 672,318.48, 927,782.42 and 366,402.74 is: 505,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,318.48 : 927,782.42 = 366,402.74 : x
  2. Step 2: Convert to fraction form
    672,318.48/927,782.42 = 366,402.74/x
  3. Step 3: Cross multiply
    672,318.48x = 927,782.42 × 366,402.74
  4. Step 4: Simplify right side
    672,318.48x = 339,942,020,811.83
  5. Step 5: Solve for x
    x = 339,942,020,811.83/672,318.48
  6. Step 6: Final answer
    x = 505,626.47

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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.