Home / 805,607.76-1,111,716.54-443,031.60

Finding the Fourth Proportional to 805,607.76, 1,111,716.54 and 443,031.60

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Solution

The fourth proportional to 805,607.76, 1,111,716.54 and 443,031.60 is: 611,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,607.76 : 1,111,716.54 = 443,031.60 : x
  2. Step 2: Convert to fraction form
    805,607.76/1,111,716.54 = 443,031.60/x
  3. Step 3: Cross multiply
    805,607.76x = 1,111,716.54 × 443,031.60
  4. Step 4: Simplify right side
    805,607.76x = 492,525,557,462.66
  5. Step 5: Solve for x
    x = 492,525,557,462.66/805,607.76
  6. Step 6: Final answer
    x = 611,371.42

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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.