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Finding the Fourth Proportional to 995,912.16, 1,493,102.52 and 515,625

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Solution

The fourth proportional to 995,912.16, 1,493,102.52 and 515,625 is: 773,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,912.16 : 1,493,102.52 = 515,625 : x
  2. Step 2: Convert to fraction form
    995,912.16/1,493,102.52 = 515,625/x
  3. Step 3: Cross multiply
    995,912.16x = 1,493,102.52 × 515,625
  4. Step 4: Simplify right side
    995,912.16x = 769,880,986,875
  5. Step 5: Solve for x
    x = 769,880,986,875/995,912.16
  6. Step 6: Final answer
    x = 773,041.06

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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.