Home / 805,643.96-1,111,766.45-443,067.81

Finding the Fourth Proportional to 805,643.96, 1,111,766.45 and 443,067.81

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Solution

The fourth proportional to 805,643.96, 1,111,766.45 and 443,067.81 is: 611,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,643.96 : 1,111,766.45 = 443,067.81 : x
  2. Step 2: Convert to fraction form
    805,643.96/1,111,766.45 = 443,067.81/x
  3. Step 3: Cross multiply
    805,643.96x = 1,111,766.45 × 443,067.81
  4. Step 4: Simplify right side
    805,643.96x = 492,587,926,232.98
  5. Step 5: Solve for x
    x = 492,587,926,232.98/805,643.96
  6. Step 6: Final answer
    x = 611,421.36

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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.