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Finding the Fourth Proportional to 577,891.40, 866,839.80 and 203,914.40

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Solution

The fourth proportional to 577,891.40, 866,839.80 and 203,914.40 is: 305,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,891.40 : 866,839.80 = 203,914.40 : x
  2. Step 2: Convert to fraction form
    577,891.40/866,839.80 = 203,914.40/x
  3. Step 3: Cross multiply
    577,891.40x = 866,839.80 × 203,914.40
  4. Step 4: Simplify right side
    577,891.40x = 176,761,117,713.12
  5. Step 5: Solve for x
    x = 176,761,117,713.12/577,891.40
  6. Step 6: Final answer
    x = 305,872.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.