Home / 919,983.62-1,269,591.75-512,089.89

Finding the Fourth Proportional to 919,983.62, 1,269,591.75 and 512,089.89

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Solution

The fourth proportional to 919,983.62, 1,269,591.75 and 512,089.89 is: 706,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,983.62 : 1,269,591.75 = 512,089.89 : x
  2. Step 2: Convert to fraction form
    919,983.62/1,269,591.75 = 512,089.89/x
  3. Step 3: Cross multiply
    919,983.62x = 1,269,591.75 × 512,089.89
  4. Step 4: Simplify right side
    919,983.62x = 650,145,099,602.41
  5. Step 5: Solve for x
    x = 650,145,099,602.41/919,983.62
  6. Step 6: Final answer
    x = 706,692.04

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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.