Home / 691,145.05-953,789.66-385,212.91

Finding the Fourth Proportional to 691,145.05, 953,789.66 and 385,212.91

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Solution

The fourth proportional to 691,145.05, 953,789.66 and 385,212.91 is: 531,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,145.05 : 953,789.66 = 385,212.91 : x
  2. Step 2: Convert to fraction form
    691,145.05/953,789.66 = 385,212.91/x
  3. Step 3: Cross multiply
    691,145.05x = 953,789.66 × 385,212.91
  4. Step 4: Simplify right side
    691,145.05x = 367,412,090,456.51
  5. Step 5: Solve for x
    x = 367,412,090,456.51/691,145.05
  6. Step 6: Final answer
    x = 531,599.11

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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.