Home / 805,587.22-1,111,695.84-443,012.09

Finding the Fourth Proportional to 805,587.22, 1,111,695.84 and 443,012.09

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Solution

The fourth proportional to 805,587.22, 1,111,695.84 and 443,012.09 is: 611,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,587.22 : 1,111,695.84 = 443,012.09 : x
  2. Step 2: Convert to fraction form
    805,587.22/1,111,695.84 = 443,012.09/x
  3. Step 3: Cross multiply
    805,587.22x = 1,111,695.84 × 443,012.09
  4. Step 4: Simplify right side
    805,587.22x = 492,494,691,964.23
  5. Step 5: Solve for x
    x = 492,494,691,964.23/805,587.22
  6. Step 6: Final answer
    x = 611,348.69

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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.