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Finding the Fourth Proportional to 633,477.64, 874,213.22 and 361,540.12

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Solution

The fourth proportional to 633,477.64, 874,213.22 and 361,540.12 is: 498,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,477.64 : 874,213.22 = 361,540.12 : x
  2. Step 2: Convert to fraction form
    633,477.64/874,213.22 = 361,540.12/x
  3. Step 3: Cross multiply
    633,477.64x = 874,213.22 × 361,540.12
  4. Step 4: Simplify right side
    633,477.64x = 316,063,152,464.39
  5. Step 5: Solve for x
    x = 316,063,152,464.39/633,477.64
  6. Step 6: Final answer
    x = 498,933.40

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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.