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Finding the Fourth Proportional to 619,573.60, 929,141.70 and 220,227.40

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Solution

The fourth proportional to 619,573.60, 929,141.70 and 220,227.40 is: 330,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,573.60 : 929,141.70 = 220,227.40 : x
  2. Step 2: Convert to fraction form
    619,573.60/929,141.70 = 220,227.40/x
  3. Step 3: Cross multiply
    619,573.60x = 929,141.70 × 220,227.40
  4. Step 4: Simplify right side
    619,573.60x = 204,622,460,822.58
  5. Step 5: Solve for x
    x = 204,622,460,822.58/619,573.60
  6. Step 6: Final answer
    x = 330,263.36

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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.