Home / 805,954.86-1,112,173.77-443,320.17

Finding the Fourth Proportional to 805,954.86, 1,112,173.77 and 443,320.17

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Solution

The fourth proportional to 805,954.86, 1,112,173.77 and 443,320.17 is: 611,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,954.86 : 1,112,173.77 = 443,320.17 : x
  2. Step 2: Convert to fraction form
    805,954.86/1,112,173.77 = 443,320.17/x
  3. Step 3: Cross multiply
    805,954.86x = 1,112,173.77 × 443,320.17
  4. Step 4: Simplify right side
    805,954.86x = 493,049,064,785.94
  5. Step 5: Solve for x
    x = 493,049,064,785.94/805,954.86
  6. Step 6: Final answer
    x = 611,757.67

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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.