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Finding the Fourth Proportional to 619,730.98, 929,989.68 and 264,747.58

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Solution

The fourth proportional to 619,730.98, 929,989.68 and 264,747.58 is: 397,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,730.98 : 929,989.68 = 264,747.58 : x
  2. Step 2: Convert to fraction form
    619,730.98/929,989.68 = 264,747.58/x
  3. Step 3: Cross multiply
    619,730.98x = 929,989.68 × 264,747.58
  4. Step 4: Simplify right side
    619,730.98x = 246,212,517,204.97
  5. Step 5: Solve for x
    x = 246,212,517,204.97/619,730.98
  6. Step 6: Final answer
    x = 397,289.35

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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.