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Finding the Fourth Proportional to 348,692.76, 522,540.12 and 198,623.16

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Solution

The fourth proportional to 348,692.76, 522,540.12 and 198,623.16 is: 297,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,692.76 : 522,540.12 = 198,623.16 : x
  2. Step 2: Convert to fraction form
    348,692.76/522,540.12 = 198,623.16/x
  3. Step 3: Cross multiply
    348,692.76x = 522,540.12 × 198,623.16
  4. Step 4: Simplify right side
    348,692.76x = 103,788,569,861.18
  5. Step 5: Solve for x
    x = 103,788,569,861.18/348,692.76
  6. Step 6: Final answer
    x = 297,650.49

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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.