Home / 664,835.50-997,811.16-345,183.58

Finding the Fourth Proportional to 664,835.50, 997,811.16 and 345,183.58

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Solution

The fourth proportional to 664,835.50, 997,811.16 and 345,183.58 is: 518,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,835.50 : 997,811.16 = 345,183.58 : x
  2. Step 2: Convert to fraction form
    664,835.50/997,811.16 = 345,183.58/x
  3. Step 3: Cross multiply
    664,835.50x = 997,811.16 × 345,183.58
  4. Step 4: Simplify right side
    664,835.50x = 344,428,028,372.75
  5. Step 5: Solve for x
    x = 344,428,028,372.75/664,835.50
  6. Step 6: Final answer
    x = 518,065.04

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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.