Home / 806,919.17-1,112,507.88-661,183.16

Finding the Fourth Proportional to 806,919.17, 1,112,507.88 and 661,183.16

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Solution

The fourth proportional to 806,919.17, 1,112,507.88 and 661,183.16 is: 911,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,919.17 : 1,112,507.88 = 661,183.16 : x
  2. Step 2: Convert to fraction form
    806,919.17/1,112,507.88 = 661,183.16/x
  3. Step 3: Cross multiply
    806,919.17x = 1,112,507.88 × 661,183.16
  4. Step 4: Simplify right side
    806,919.17x = 735,571,475,623.30
  5. Step 5: Solve for x
    x = 735,571,475,623.30/806,919.17
  6. Step 6: Final answer
    x = 911,580.12

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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.