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Finding the Fourth Proportional to 432,003.30, 648,102.15 and 254,418.90

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Solution

The fourth proportional to 432,003.30, 648,102.15 and 254,418.90 is: 381,685.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,003.30 : 648,102.15 = 254,418.90 : x
  2. Step 2: Convert to fraction form
    432,003.30/648,102.15 = 254,418.90/x
  3. Step 3: Cross multiply
    432,003.30x = 648,102.15 × 254,418.90
  4. Step 4: Simplify right side
    432,003.30x = 164,889,436,090.64
  5. Step 5: Solve for x
    x = 164,889,436,090.64/432,003.30
  6. Step 6: Final answer
    x = 381,685.59

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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.