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Finding the Fourth Proportional to 997,188.96, 1,375,422.48 and 674,757.12

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Solution

The fourth proportional to 997,188.96, 1,375,422.48 and 674,757.12 is: 930,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,188.96 : 1,375,422.48 = 674,757.12 : x
  2. Step 2: Convert to fraction form
    997,188.96/1,375,422.48 = 674,757.12/x
  3. Step 3: Cross multiply
    997,188.96x = 1,375,422.48 × 674,757.12
  4. Step 4: Simplify right side
    997,188.96x = 928,076,111,388.06
  5. Step 5: Solve for x
    x = 928,076,111,388.06/997,188.96
  6. Step 6: Final answer
    x = 930,692.32

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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.