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Finding the Fourth Proportional to 701,563.28, 968,185.51 and 391,492.98

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Solution

The fourth proportional to 701,563.28, 968,185.51 and 391,492.98 is: 540,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,563.28 : 968,185.51 = 391,492.98 : x
  2. Step 2: Convert to fraction form
    701,563.28/968,185.51 = 391,492.98/x
  3. Step 3: Cross multiply
    701,563.28x = 968,185.51 × 391,492.98
  4. Step 4: Simplify right side
    701,563.28x = 379,037,829,523.99
  5. Step 5: Solve for x
    x = 379,037,829,523.99/701,563.28
  6. Step 6: Final answer
    x = 540,276.04

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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.