Home / 805,643.05-1,111,791.43-443,090.08

Finding the Fourth Proportional to 805,643.05, 1,111,791.43 and 443,090.08

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Solution

The fourth proportional to 805,643.05, 1,111,791.43 and 443,090.08 is: 611,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,643.05 : 1,111,791.43 = 443,090.08 : x
  2. Step 2: Convert to fraction form
    805,643.05/1,111,791.43 = 443,090.08/x
  3. Step 3: Cross multiply
    805,643.05x = 1,111,791.43 × 443,090.08
  4. Step 4: Simplify right side
    805,643.05x = 492,623,753,662.01
  5. Step 5: Solve for x
    x = 492,623,753,662.01/805,643.05
  6. Step 6: Final answer
    x = 611,466.52

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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.