Home / 806,456.13-1,112,900.66-443,872.20

Finding the Fourth Proportional to 806,456.13, 1,112,900.66 and 443,872.20

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Solution

The fourth proportional to 806,456.13, 1,112,900.66 and 443,872.20 is: 612,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,456.13 : 1,112,900.66 = 443,872.20 : x
  2. Step 2: Convert to fraction form
    806,456.13/1,112,900.66 = 443,872.20/x
  3. Step 3: Cross multiply
    806,456.13x = 1,112,900.66 × 443,872.20
  4. Step 4: Simplify right side
    806,456.13x = 493,985,670,450.97
  5. Step 5: Solve for x
    x = 493,985,670,450.97/806,456.13
  6. Step 6: Final answer
    x = 612,538.80

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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.