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Finding the Fourth Proportional to 451,347.53, 676,356.98 and 198,396.41

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Solution

The fourth proportional to 451,347.53, 676,356.98 and 198,396.41 is: 297,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,347.53 : 676,356.98 = 198,396.41 : x
  2. Step 2: Convert to fraction form
    451,347.53/676,356.98 = 198,396.41/x
  3. Step 3: Cross multiply
    451,347.53x = 676,356.98 × 198,396.41
  4. Step 4: Simplify right side
    451,347.53x = 134,186,792,336.68
  5. Step 5: Solve for x
    x = 134,186,792,336.68/451,347.53
  6. Step 6: Final answer
    x = 297,302.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.