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Finding the Fourth Proportional to 432,073.80, 648,110.70 and 341,872.20

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Solution

The fourth proportional to 432,073.80, 648,110.70 and 341,872.20 is: 512,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,073.80 : 648,110.70 = 341,872.20 : x
  2. Step 2: Convert to fraction form
    432,073.80/648,110.70 = 341,872.20/x
  3. Step 3: Cross multiply
    432,073.80x = 648,110.70 × 341,872.20
  4. Step 4: Simplify right side
    432,073.80x = 221,571,030,852.54
  5. Step 5: Solve for x
    x = 221,571,030,852.54/432,073.80
  6. Step 6: Final answer
    x = 512,808.30

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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.