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Finding the Fourth Proportional to 633,434.55, 874,153.89 and 361,497.03

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Solution

The fourth proportional to 633,434.55, 874,153.89 and 361,497.03 is: 498,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,434.55 : 874,153.89 = 361,497.03 : x
  2. Step 2: Convert to fraction form
    633,434.55/874,153.89 = 361,497.03/x
  3. Step 3: Cross multiply
    633,434.55x = 874,153.89 × 361,497.03
  4. Step 4: Simplify right side
    633,434.55x = 316,004,034,997.95
  5. Step 5: Solve for x
    x = 316,004,034,997.95/633,434.55
  6. Step 6: Final answer
    x = 498,874.01

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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.