Home / 1,253,485.15-1,729,916.57-709,716.76

Finding the Fourth Proportional to 1,253,485.15, 1,729,916.57 and 709,716.76

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Solution

The fourth proportional to 1,253,485.15, 1,729,916.57 and 709,716.76 is: 979,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,485.15 : 1,729,916.57 = 709,716.76 : x
  2. Step 2: Convert to fraction form
    1,253,485.15/1,729,916.57 = 709,716.76/x
  3. Step 3: Cross multiply
    1,253,485.15x = 1,729,916.57 × 709,716.76
  4. Step 4: Simplify right side
    1,253,485.15x = 1,227,750,783,130.71
  5. Step 5: Solve for x
    x = 1,227,750,783,130.71/1,253,485.15
  6. Step 6: Final answer
    x = 979,469.75

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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.