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Finding the Fourth Proportional to 577,889.40, 866,836.80 and 203,912.40

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Solution

The fourth proportional to 577,889.40, 866,836.80 and 203,912.40 is: 305,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,889.40 : 866,836.80 = 203,912.40 : x
  2. Step 2: Convert to fraction form
    577,889.40/866,836.80 = 203,912.40/x
  3. Step 3: Cross multiply
    577,889.40x = 866,836.80 × 203,912.40
  4. Step 4: Simplify right side
    577,889.40x = 176,758,772,296.32
  5. Step 5: Solve for x
    x = 176,758,772,296.32/577,889.40
  6. Step 6: Final answer
    x = 305,869.55

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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.