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Finding the Fourth Proportional to 633,370.43, 874,113.73 and 361,478.95

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Solution

The fourth proportional to 633,370.43, 874,113.73 and 361,478.95 is: 498,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,370.43 : 874,113.73 = 361,478.95 : x
  2. Step 2: Convert to fraction form
    633,370.43/874,113.73 = 361,478.95/x
  3. Step 3: Cross multiply
    633,370.43x = 874,113.73 × 361,478.95
  4. Step 4: Simplify right side
    633,370.43x = 315,973,708,930.42
  5. Step 5: Solve for x
    x = 315,973,708,930.42/633,370.43
  6. Step 6: Final answer
    x = 498,876.64

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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.