Home / 1,331,854.13-1,997,160.12-691,985.85

Finding the Fourth Proportional to 1,331,854.13, 1,997,160.12 and 691,985.85

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Solution

The fourth proportional to 1,331,854.13, 1,997,160.12 and 691,985.85 is: 1,037,656.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,854.13 : 1,997,160.12 = 691,985.85 : x
  2. Step 2: Convert to fraction form
    1,331,854.13/1,997,160.12 = 691,985.85/x
  3. Step 3: Cross multiply
    1,331,854.13x = 1,997,160.12 × 691,985.85
  4. Step 4: Simplify right side
    1,331,854.13x = 1,382,006,545,819.25
  5. Step 5: Solve for x
    x = 1,382,006,545,819.25/1,331,854.13
  6. Step 6: Final answer
    x = 1,037,656.09

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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.