Home / 805,887.25-1,112,126.96-443,338.67

Finding the Fourth Proportional to 805,887.25, 1,112,126.96 and 443,338.67

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Solution

The fourth proportional to 805,887.25, 1,112,126.96 and 443,338.67 is: 611,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,887.25 : 1,112,126.96 = 443,338.67 : x
  2. Step 2: Convert to fraction form
    805,887.25/1,112,126.96 = 443,338.67/x
  3. Step 3: Cross multiply
    805,887.25x = 1,112,126.96 × 443,338.67
  4. Step 4: Simplify right side
    805,887.25x = 493,048,891,206.21
  5. Step 5: Solve for x
    x = 493,048,891,206.21/805,887.25
  6. Step 6: Final answer
    x = 611,808.78

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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.