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Finding the Fourth Proportional to 633,431.96, 874,125.31 and 343,041.17

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Solution

The fourth proportional to 633,431.96, 874,125.31 and 343,041.17 is: 473,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,431.96 : 874,125.31 = 343,041.17 : x
  2. Step 2: Convert to fraction form
    633,431.96/874,125.31 = 343,041.17/x
  3. Step 3: Cross multiply
    633,431.96x = 874,125.31 × 343,041.17
  4. Step 4: Simplify right side
    633,431.96x = 299,860,970,396.72
  5. Step 5: Solve for x
    x = 299,860,970,396.72/633,431.96
  6. Step 6: Final answer
    x = 473,390.97

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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.