Home / 486,338.23-671,144.16-282,439.27

Finding the Fourth Proportional to 486,338.23, 671,144.16 and 282,439.27

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Solution

The fourth proportional to 486,338.23, 671,144.16 and 282,439.27 is: 389,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,338.23 : 671,144.16 = 282,439.27 : x
  2. Step 2: Convert to fraction form
    486,338.23/671,144.16 = 282,439.27/x
  3. Step 3: Cross multiply
    486,338.23x = 671,144.16 × 282,439.27
  4. Step 4: Simplify right side
    486,338.23x = 189,557,466,615.16
  5. Step 5: Solve for x
    x = 189,557,466,615.16/486,338.23
  6. Step 6: Final answer
    x = 389,764.68

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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.