Home / 806,173.11-1,112,485.53-438,651.76

Finding the Fourth Proportional to 806,173.11, 1,112,485.53 and 438,651.76

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Solution

The fourth proportional to 806,173.11, 1,112,485.53 and 438,651.76 is: 605,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,173.11 : 1,112,485.53 = 438,651.76 : x
  2. Step 2: Convert to fraction form
    806,173.11/1,112,485.53 = 438,651.76/x
  3. Step 3: Cross multiply
    806,173.11x = 1,112,485.53 × 438,651.76
  4. Step 4: Simplify right side
    806,173.11x = 487,993,735,424.97
  5. Step 5: Solve for x
    x = 487,993,735,424.97/806,173.11
  6. Step 6: Final answer
    x = 605,321.28

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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.