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Finding the Fourth Proportional to 633,530.56, 874,028.64 and 361,613.56

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Solution

The fourth proportional to 633,530.56, 874,028.64 and 361,613.56 is: 498,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,530.56 : 874,028.64 = 361,613.56 : x
  2. Step 2: Convert to fraction form
    633,530.56/874,028.64 = 361,613.56/x
  3. Step 3: Cross multiply
    633,530.56x = 874,028.64 × 361,613.56
  4. Step 4: Simplify right side
    633,530.56x = 316,060,608,052.36
  5. Step 5: Solve for x
    x = 316,060,608,052.36/633,530.56
  6. Step 6: Final answer
    x = 498,887.71

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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.