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Finding the Fourth Proportional to 494,553.60, 742,024.80 and 194,983.20

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Solution

The fourth proportional to 494,553.60, 742,024.80 and 194,983.20 is: 292,551.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,553.60 : 742,024.80 = 194,983.20 : x
  2. Step 2: Convert to fraction form
    494,553.60/742,024.80 = 194,983.20/x
  3. Step 3: Cross multiply
    494,553.60x = 742,024.80 × 194,983.20
  4. Step 4: Simplify right side
    494,553.60x = 144,682,369,983.36
  5. Step 5: Solve for x
    x = 144,682,369,983.36/494,553.60
  6. Step 6: Final answer
    x = 292,551.44

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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.