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Finding the Fourth Proportional to 805,959.30, 1,112,179.95 and 443,324.64

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Solution

The fourth proportional to 805,959.30, 1,112,179.95 and 443,324.64 is: 611,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,959.30 : 1,112,179.95 = 443,324.64 : x
  2. Step 2: Convert to fraction form
    805,959.30/1,112,179.95 = 443,324.64/x
  3. Step 3: Cross multiply
    805,959.30x = 1,112,179.95 × 443,324.64
  4. Step 4: Simplify right side
    805,959.30x = 493,056,775,948.97
  5. Step 5: Solve for x
    x = 493,056,775,948.97/805,959.30
  6. Step 6: Final answer
    x = 611,763.86

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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.