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Finding the Fourth Proportional to 573,203.40, 860,145.30 and 218,253.30

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Solution

The fourth proportional to 573,203.40, 860,145.30 and 218,253.30 is: 327,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,203.40 : 860,145.30 = 218,253.30 : x
  2. Step 2: Convert to fraction form
    573,203.40/860,145.30 = 218,253.30/x
  3. Step 3: Cross multiply
    573,203.40x = 860,145.30 × 218,253.30
  4. Step 4: Simplify right side
    573,203.40x = 187,729,550,204.49
  5. Step 5: Solve for x
    x = 187,729,550,204.49/573,203.40
  6. Step 6: Final answer
    x = 327,509.48

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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.