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Finding the Fourth Proportional to 624,365.86, 861,532.52 and 366,145.40

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Solution

The fourth proportional to 624,365.86, 861,532.52 and 366,145.40 is: 505,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,365.86 : 861,532.52 = 366,145.40 : x
  2. Step 2: Convert to fraction form
    624,365.86/861,532.52 = 366,145.40/x
  3. Step 3: Cross multiply
    624,365.86x = 861,532.52 × 366,145.40
  4. Step 4: Simplify right side
    624,365.86x = 315,446,169,148.41
  5. Step 5: Solve for x
    x = 315,446,169,148.41/624,365.86
  6. Step 6: Final answer
    x = 505,226.49

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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.