Home / 805,892.31-1,112,133.95-443,343.74

Finding the Fourth Proportional to 805,892.31, 1,112,133.95 and 443,343.74

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Solution

The fourth proportional to 805,892.31, 1,112,133.95 and 443,343.74 is: 611,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,892.31 : 1,112,133.95 = 443,343.74 : x
  2. Step 2: Convert to fraction form
    805,892.31/1,112,133.95 = 443,343.74/x
  3. Step 3: Cross multiply
    805,892.31x = 1,112,133.95 × 443,343.74
  4. Step 4: Simplify right side
    805,892.31x = 493,057,616,996.59
  5. Step 5: Solve for x
    x = 493,057,616,996.59/805,892.31
  6. Step 6: Final answer
    x = 611,815.76

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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.