Home / 423,183.28-634,779.14-107,640.24

Finding the Fourth Proportional to 423,183.28, 634,779.14 and 107,640.24

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Solution

The fourth proportional to 423,183.28, 634,779.14 and 107,640.24 is: 161,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,183.28 : 634,779.14 = 107,640.24 : x
  2. Step 2: Convert to fraction form
    423,183.28/634,779.14 = 107,640.24/x
  3. Step 3: Cross multiply
    423,183.28x = 634,779.14 × 107,640.24
  4. Step 4: Simplify right side
    423,183.28x = 68,327,778,976.59
  5. Step 5: Solve for x
    x = 68,327,778,976.59/423,183.28
  6. Step 6: Final answer
    x = 161,461.43

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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.