Home / 819,568.38-1,131,153.75-475,624.38

Finding the Fourth Proportional to 819,568.38, 1,131,153.75 and 475,624.38

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Solution

The fourth proportional to 819,568.38, 1,131,153.75 and 475,624.38 is: 656,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,568.38 : 1,131,153.75 = 475,624.38 : x
  2. Step 2: Convert to fraction form
    819,568.38/1,131,153.75 = 475,624.38/x
  3. Step 3: Cross multiply
    819,568.38x = 1,131,153.75 × 475,624.38
  4. Step 4: Simplify right side
    819,568.38x = 538,004,301,028.43
  5. Step 5: Solve for x
    x = 538,004,301,028.43/819,568.38
  6. Step 6: Final answer
    x = 656,448.34

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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.