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Finding the Fourth Proportional to 609,023.76, 913,597.07 and 209,611.95

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Solution

The fourth proportional to 609,023.76, 913,597.07 and 209,611.95 is: 314,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,023.76 : 913,597.07 = 209,611.95 : x
  2. Step 2: Convert to fraction form
    609,023.76/913,597.07 = 209,611.95/x
  3. Step 3: Cross multiply
    609,023.76x = 913,597.07 × 209,611.95
  4. Step 4: Simplify right side
    609,023.76x = 191,500,862,308.93
  5. Step 5: Solve for x
    x = 191,500,862,308.93/609,023.76
  6. Step 6: Final answer
    x = 314,439.07

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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.