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Finding the Fourth Proportional to 432,236.82, 648,811.76 and 242,859.03

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Solution

The fourth proportional to 432,236.82, 648,811.76 and 242,859.03 is: 364,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,236.82 : 648,811.76 = 242,859.03 : x
  2. Step 2: Convert to fraction form
    432,236.82/648,811.76 = 242,859.03/x
  3. Step 3: Cross multiply
    432,236.82x = 648,811.76 × 242,859.03
  4. Step 4: Simplify right side
    432,236.82x = 157,569,794,686.19
  5. Step 5: Solve for x
    x = 157,569,794,686.19/432,236.82
  6. Step 6: Final answer
    x = 364,545.05

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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.