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Finding the Fourth Proportional to 633,133.52, 873,807.78 and 361,139.12

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Solution

The fourth proportional to 633,133.52, 873,807.78 and 361,139.12 is: 498,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,133.52 : 873,807.78 = 361,139.12 : x
  2. Step 2: Convert to fraction form
    633,133.52/873,807.78 = 361,139.12/x
  3. Step 3: Cross multiply
    633,133.52x = 873,807.78 × 361,139.12
  4. Step 4: Simplify right side
    633,133.52x = 315,566,172,718.35
  5. Step 5: Solve for x
    x = 315,566,172,718.35/633,133.52
  6. Step 6: Final answer
    x = 498,419.63

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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.