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Finding the Fourth Proportional to 432,029.80, 647,850.30 and 165,701.80

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Solution

The fourth proportional to 432,029.80, 647,850.30 and 165,701.80 is: 248,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,029.80 : 647,850.30 = 165,701.80 : x
  2. Step 2: Convert to fraction form
    432,029.80/647,850.30 = 165,701.80/x
  3. Step 3: Cross multiply
    432,029.80x = 647,850.30 × 165,701.80
  4. Step 4: Simplify right side
    432,029.80x = 107,349,960,840.54
  5. Step 5: Solve for x
    x = 107,349,960,840.54/432,029.80
  6. Step 6: Final answer
    x = 248,478.14

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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.