Home / 868,784.49-1,198,211.51-611,513.03

Finding the Fourth Proportional to 868,784.49, 1,198,211.51 and 611,513.03

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Solution

The fourth proportional to 868,784.49, 1,198,211.51 and 611,513.03 is: 843,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,784.49 : 1,198,211.51 = 611,513.03 : x
  2. Step 2: Convert to fraction form
    868,784.49/1,198,211.51 = 611,513.03/x
  3. Step 3: Cross multiply
    868,784.49x = 1,198,211.51 × 611,513.03
  4. Step 4: Simplify right side
    868,784.49x = 732,721,942,012.35
  5. Step 5: Solve for x
    x = 732,721,942,012.35/868,784.49
  6. Step 6: Final answer
    x = 843,387.46

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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.