Home / 805,642.96-1,111,765.07-443,066.81

Finding the Fourth Proportional to 805,642.96, 1,111,765.07 and 443,066.81

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Solution

The fourth proportional to 805,642.96, 1,111,765.07 and 443,066.81 is: 611,419.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,642.96 : 1,111,765.07 = 443,066.81 : x
  2. Step 2: Convert to fraction form
    805,642.96/1,111,765.07 = 443,066.81/x
  3. Step 3: Cross multiply
    805,642.96x = 1,111,765.07 × 443,066.81
  4. Step 4: Simplify right side
    805,642.96x = 492,586,206,921.41
  5. Step 5: Solve for x
    x = 492,586,206,921.41/805,642.96
  6. Step 6: Final answer
    x = 611,419.99

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Double scale
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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.