Home / 868,784.65-1,198,211.89-611,513.26

Finding the Fourth Proportional to 868,784.65, 1,198,211.89 and 611,513.26

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Solution

The fourth proportional to 868,784.65, 1,198,211.89 and 611,513.26 is: 843,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,784.65 : 1,198,211.89 = 611,513.26 : x
  2. Step 2: Convert to fraction form
    868,784.65/1,198,211.89 = 611,513.26/x
  3. Step 3: Cross multiply
    868,784.65x = 1,198,211.89 × 611,513.26
  4. Step 4: Simplify right side
    868,784.65x = 732,722,459,024.66
  5. Step 5: Solve for x
    x = 732,722,459,024.66/868,784.65
  6. Step 6: Final answer
    x = 843,387.90

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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.