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Finding the Fourth Proportional to 603,563.38, 832,989.87 and 361,978.85

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Solution

The fourth proportional to 603,563.38, 832,989.87 and 361,978.85 is: 499,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,563.38 : 832,989.87 = 361,978.85 : x
  2. Step 2: Convert to fraction form
    603,563.38/832,989.87 = 361,978.85/x
  3. Step 3: Cross multiply
    603,563.38x = 832,989.87 × 361,978.85
  4. Step 4: Simplify right side
    603,563.38x = 301,524,717,286.72
  5. Step 5: Solve for x
    x = 301,524,717,286.72/603,563.38
  6. Step 6: Final answer
    x = 499,574.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.