Home / 805,679.16-1,111,813.68-443,102.64

Finding the Fourth Proportional to 805,679.16, 1,111,813.68 and 443,102.64

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Solution

The fourth proportional to 805,679.16, 1,111,813.68 and 443,102.64 is: 611,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,679.16 : 1,111,813.68 = 443,102.64 : x
  2. Step 2: Convert to fraction form
    805,679.16/1,111,813.68 = 443,102.64/x
  3. Step 3: Cross multiply
    805,679.16x = 1,111,813.68 × 443,102.64
  4. Step 4: Simplify right side
    805,679.16x = 492,647,576,796.12
  5. Step 5: Solve for x
    x = 492,647,576,796.12/805,679.16
  6. Step 6: Final answer
    x = 611,468.69

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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.