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Finding the Fourth Proportional to 493,001.40, 739,502.10 and 449,455.80

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Solution

The fourth proportional to 493,001.40, 739,502.10 and 449,455.80 is: 674,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,001.40 : 739,502.10 = 449,455.80 : x
  2. Step 2: Convert to fraction form
    493,001.40/739,502.10 = 449,455.80/x
  3. Step 3: Cross multiply
    493,001.40x = 739,502.10 × 449,455.80
  4. Step 4: Simplify right side
    493,001.40x = 332,373,507,957.18
  5. Step 5: Solve for x
    x = 332,373,507,957.18/493,001.40
  6. Step 6: Final answer
    x = 674,183.70

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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.