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Finding the Fourth Proportional to 633,434.24, 874,146.48 and 361,538.84

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Solution

The fourth proportional to 633,434.24, 874,146.48 and 361,538.84 is: 498,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,434.24 : 874,146.48 = 361,538.84 : x
  2. Step 2: Convert to fraction form
    633,434.24/874,146.48 = 361,538.84/x
  3. Step 3: Cross multiply
    633,434.24x = 874,146.48 × 361,538.84
  4. Step 4: Simplify right side
    633,434.24x = 316,037,904,369.28
  5. Step 5: Solve for x
    x = 316,037,904,369.28/633,434.24
  6. Step 6: Final answer
    x = 498,927.73

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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.