Home / 1,289,791.29-1,934,691.44-391,240.77

Finding the Fourth Proportional to 1,289,791.29, 1,934,691.44 and 391,240.77

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Solution

The fourth proportional to 1,289,791.29, 1,934,691.44 and 391,240.77 is: 586,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,791.29 : 1,934,691.44 = 391,240.77 : x
  2. Step 2: Convert to fraction form
    1,289,791.29/1,934,691.44 = 391,240.77/x
  3. Step 3: Cross multiply
    1,289,791.29x = 1,934,691.44 × 391,240.77
  4. Step 4: Simplify right side
    1,289,791.29x = 756,930,166,741.81
  5. Step 5: Solve for x
    x = 756,930,166,741.81/1,289,791.29
  6. Step 6: Final answer
    x = 586,862.52

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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.