Home / 638,837.35-881,593.68-366,922.78

Finding the Fourth Proportional to 638,837.35, 881,593.68 and 366,922.78

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Solution

The fourth proportional to 638,837.35, 881,593.68 and 366,922.78 is: 506,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,837.35 : 881,593.68 = 366,922.78 : x
  2. Step 2: Convert to fraction form
    638,837.35/881,593.68 = 366,922.78/x
  3. Step 3: Cross multiply
    638,837.35x = 881,593.68 × 366,922.78
  4. Step 4: Simplify right side
    638,837.35x = 323,476,803,896.03
  5. Step 5: Solve for x
    x = 323,476,803,896.03/638,837.35
  6. Step 6: Final answer
    x = 506,352.37

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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.