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Finding the Fourth Proportional to 264,841.20, 397,261.80 and 189,802.80

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Solution

The fourth proportional to 264,841.20, 397,261.80 and 189,802.80 is: 284,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,841.20 : 397,261.80 = 189,802.80 : x
  2. Step 2: Convert to fraction form
    264,841.20/397,261.80 = 189,802.80/x
  3. Step 3: Cross multiply
    264,841.20x = 397,261.80 × 189,802.80
  4. Step 4: Simplify right side
    264,841.20x = 75,401,401,973.04
  5. Step 5: Solve for x
    x = 75,401,401,973.04/264,841.20
  6. Step 6: Final answer
    x = 284,704.20

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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.