Home / 801,347.51-1,105,855.52-438,764.78

Finding the Fourth Proportional to 801,347.51, 1,105,855.52 and 438,764.78

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Solution

The fourth proportional to 801,347.51, 1,105,855.52 and 438,764.78 is: 605,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,347.51 : 1,105,855.52 = 438,764.78 : x
  2. Step 2: Convert to fraction form
    801,347.51/1,105,855.52 = 438,764.78/x
  3. Step 3: Cross multiply
    801,347.51x = 1,105,855.52 × 438,764.78
  4. Step 4: Simplify right side
    801,347.51x = 485,210,453,944.59
  5. Step 5: Solve for x
    x = 485,210,453,944.59/801,347.51
  6. Step 6: Final answer
    x = 605,493.18

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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.