Home / 806,257.65-1,112,607.66-443,647.59

Finding the Fourth Proportional to 806,257.65, 1,112,607.66 and 443,647.59

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Solution

The fourth proportional to 806,257.65, 1,112,607.66 and 443,647.59 is: 612,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,257.65 : 1,112,607.66 = 443,647.59 : x
  2. Step 2: Convert to fraction form
    806,257.65/1,112,607.66 = 443,647.59/x
  3. Step 3: Cross multiply
    806,257.65x = 1,112,607.66 × 443,647.59
  4. Step 4: Simplify right side
    806,257.65x = 493,605,706,974.54
  5. Step 5: Solve for x
    x = 493,605,706,974.54/806,257.65
  6. Step 6: Final answer
    x = 612,218.32

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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.