Home / 419,000,443,770.20-628,500,665,655.30-286,760,916,858.20

Finding the Fourth Proportional to 419,000,443,770.20, 628,500,665,655.30 and 286,760,916,858.20

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Solution

The fourth proportional to 419,000,443,770.20, 628,500,665,655.30 and 286,760,916,858.20 is: 430,141,375,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,000,443,770.20 : 628,500,665,655.30 = 286,760,916,858.20 : x
  2. Step 2: Convert to fraction form
    419,000,443,770.20/628,500,665,655.30 = 286,760,916,858.20/x
  3. Step 3: Cross multiply
    419,000,443,770.20x = 628,500,665,655.30 × 286,760,916,858.20
  4. Step 4: Simplify right side
    419,000,443,770.20x = 180,229,427,129,302,875,373,568
  5. Step 5: Solve for x
    x = 180,229,427,129,302,875,373,568/419,000,443,770.20
  6. Step 6: Final answer
    x = 430,141,375,287.30

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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.