Home / 1,136,729.28-1,568,686.50-627,431.76

Finding the Fourth Proportional to 1,136,729.28, 1,568,686.50 and 627,431.76

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Solution

The fourth proportional to 1,136,729.28, 1,568,686.50 and 627,431.76 is: 865,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,729.28 : 1,568,686.50 = 627,431.76 : x
  2. Step 2: Convert to fraction form
    1,136,729.28/1,568,686.50 = 627,431.76/x
  3. Step 3: Cross multiply
    1,136,729.28x = 1,568,686.50 × 627,431.76
  4. Step 4: Simplify right side
    1,136,729.28x = 984,243,731,583.24
  5. Step 5: Solve for x
    x = 984,243,731,583.24/1,136,729.28
  6. Step 6: Final answer
    x = 865,855.88

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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.