Home / 1,265,986.67-1,899,146.76-412,758.69

Finding the Fourth Proportional to 1,265,986.67, 1,899,146.76 and 412,758.69

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Solution

The fourth proportional to 1,265,986.67, 1,899,146.76 and 412,758.69 is: 619,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,986.67 : 1,899,146.76 = 412,758.69 : x
  2. Step 2: Convert to fraction form
    1,265,986.67/1,899,146.76 = 412,758.69/x
  3. Step 3: Cross multiply
    1,265,986.67x = 1,899,146.76 × 412,758.69
  4. Step 4: Simplify right side
    1,265,986.67x = 783,889,320,105.70
  5. Step 5: Solve for x
    x = 783,889,320,105.70/1,265,986.67
  6. Step 6: Final answer
    x = 619,192.40

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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.