Home / 868,507.05-1,198,538.82-486,536.52

Finding the Fourth Proportional to 868,507.05, 1,198,538.82 and 486,536.52

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Solution

The fourth proportional to 868,507.05, 1,198,538.82 and 486,536.52 is: 671,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,507.05 : 1,198,538.82 = 486,536.52 : x
  2. Step 2: Convert to fraction form
    868,507.05/1,198,538.82 = 486,536.52/x
  3. Step 3: Cross multiply
    868,507.05x = 1,198,538.82 × 486,536.52
  4. Step 4: Simplify right side
    868,507.05x = 583,132,906,567.71
  5. Step 5: Solve for x
    x = 583,132,906,567.71/868,507.05
  6. Step 6: Final answer
    x = 671,419.89

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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.