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Finding the Fourth Proportional to 633,434.92, 874,154.40 and 361,497.40

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Solution

The fourth proportional to 633,434.92, 874,154.40 and 361,497.40 is: 498,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,434.92 : 874,154.40 = 361,497.40 : x
  2. Step 2: Convert to fraction form
    633,434.92/874,154.40 = 361,497.40/x
  3. Step 3: Cross multiply
    633,434.92x = 874,154.40 × 361,497.40
  4. Step 4: Simplify right side
    633,434.92x = 316,004,539,257.56
  5. Step 5: Solve for x
    x = 316,004,539,257.56/633,434.92
  6. Step 6: Final answer
    x = 498,874.52

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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.