Home / 691,249.48-953,944.50-404,742.76

Finding the Fourth Proportional to 691,249.48, 953,944.50 and 404,742.76

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Solution

The fourth proportional to 691,249.48, 953,944.50 and 404,742.76 is: 558,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,249.48 : 953,944.50 = 404,742.76 : x
  2. Step 2: Convert to fraction form
    691,249.48/953,944.50 = 404,742.76/x
  3. Step 3: Cross multiply
    691,249.48x = 953,944.50 × 404,742.76
  4. Step 4: Simplify right side
    691,249.48x = 386,102,129,816.82
  5. Step 5: Solve for x
    x = 386,102,129,816.82/691,249.48
  6. Step 6: Final answer
    x = 558,556.85

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Double scale
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1.5x scale

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.