Home / 805,809.06-1,111,993.28-443,232.90

Finding the Fourth Proportional to 805,809.06, 1,111,993.28 and 443,232.90

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Solution

The fourth proportional to 805,809.06, 1,111,993.28 and 443,232.90 is: 611,648.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,809.06 : 1,111,993.28 = 443,232.90 : x
  2. Step 2: Convert to fraction form
    805,809.06/1,111,993.28 = 443,232.90/x
  3. Step 3: Cross multiply
    805,809.06x = 1,111,993.28 × 443,232.90
  4. Step 4: Simplify right side
    805,809.06x = 492,872,006,274.91
  5. Step 5: Solve for x
    x = 492,872,006,274.91/805,809.06
  6. Step 6: Final answer
    x = 611,648.63

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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.