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Finding the Fourth Proportional to 644,937.20, 966,714.60 and 245,423.60

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Solution

The fourth proportional to 644,937.20, 966,714.60 and 245,423.60 is: 367,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,937.20 : 966,714.60 = 245,423.60 : x
  2. Step 2: Convert to fraction form
    644,937.20/966,714.60 = 245,423.60/x
  3. Step 3: Cross multiply
    644,937.20x = 966,714.60 × 245,423.60
  4. Step 4: Simplify right side
    644,937.20x = 237,254,577,304.56
  5. Step 5: Solve for x
    x = 237,254,577,304.56/644,937.20
  6. Step 6: Final answer
    x = 367,872.37

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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.