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Finding the Fourth Proportional to 633,655.54, 874,411.22 and 361,712.62

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Solution

The fourth proportional to 633,655.54, 874,411.22 and 361,712.62 is: 499,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,655.54 : 874,411.22 = 361,712.62 : x
  2. Step 2: Convert to fraction form
    633,655.54/874,411.22 = 361,712.62/x
  3. Step 3: Cross multiply
    633,655.54x = 874,411.22 × 361,712.62
  4. Step 4: Simplify right side
    633,655.54x = 316,285,573,343.60
  5. Step 5: Solve for x
    x = 316,285,573,343.60/633,655.54
  6. Step 6: Final answer
    x = 499,144.34

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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.