Home / 816,605.10-1,222,512.32-572,600.09

Finding the Fourth Proportional to 816,605.10, 1,222,512.32 and 572,600.09

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Solution

The fourth proportional to 816,605.10, 1,222,512.32 and 572,600.09 is: 857,220.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,605.10 : 1,222,512.32 = 572,600.09 : x
  2. Step 2: Convert to fraction form
    816,605.10/1,222,512.32 = 572,600.09/x
  3. Step 3: Cross multiply
    816,605.10x = 1,222,512.32 × 572,600.09
  4. Step 4: Simplify right side
    816,605.10x = 700,010,668,945.89
  5. Step 5: Solve for x
    x = 700,010,668,945.89/816,605.10
  6. Step 6: Final answer
    x = 857,220.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.