Home / 809,818.83-1,117,558.35-447,251.76

Finding the Fourth Proportional to 809,818.83, 1,117,558.35 and 447,251.76

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Solution

The fourth proportional to 809,818.83, 1,117,558.35 and 447,251.76 is: 617,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,818.83 : 1,117,558.35 = 447,251.76 : x
  2. Step 2: Convert to fraction form
    809,818.83/1,117,558.35 = 447,251.76/x
  3. Step 3: Cross multiply
    809,818.83x = 1,117,558.35 × 447,251.76
  4. Step 4: Simplify right side
    809,818.83x = 499,829,938,940.20
  5. Step 5: Solve for x
    x = 499,829,938,940.20/809,818.83
  6. Step 6: Final answer
    x = 617,212.05

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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.