Home / 809,209.28-1,117,086.72-469,611.92

Finding the Fourth Proportional to 809,209.28, 1,117,086.72 and 469,611.92

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Solution

The fourth proportional to 809,209.28, 1,117,086.72 and 469,611.92 is: 648,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,209.28 : 1,117,086.72 = 469,611.92 : x
  2. Step 2: Convert to fraction form
    809,209.28/1,117,086.72 = 469,611.92/x
  3. Step 3: Cross multiply
    809,209.28x = 1,117,086.72 × 469,611.92
  4. Step 4: Simplify right side
    809,209.28x = 524,597,239,385.70
  5. Step 5: Solve for x
    x = 524,597,239,385.70/809,209.28
  6. Step 6: Final answer
    x = 648,283.77

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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.