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Finding the Fourth Proportional to 432,094.80, 648,142.20 and 299,125.20

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Solution

The fourth proportional to 432,094.80, 648,142.20 and 299,125.20 is: 448,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,094.80 : 648,142.20 = 299,125.20 : x
  2. Step 2: Convert to fraction form
    432,094.80/648,142.20 = 299,125.20/x
  3. Step 3: Cross multiply
    432,094.80x = 648,142.20 × 299,125.20
  4. Step 4: Simplify right side
    432,094.80x = 193,875,665,203.44
  5. Step 5: Solve for x
    x = 193,875,665,203.44/432,094.80
  6. Step 6: Final answer
    x = 448,687.80

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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.