Home / 451,340.25-672,975.27-438,939.96

Finding the Fourth Proportional to 451,340.25, 672,975.27 and 438,939.96

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Solution

The fourth proportional to 451,340.25, 672,975.27 and 438,939.96 is: 654,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,340.25 : 672,975.27 = 438,939.96 : x
  2. Step 2: Convert to fraction form
    451,340.25/672,975.27 = 438,939.96/x
  3. Step 3: Cross multiply
    451,340.25x = 672,975.27 × 438,939.96
  4. Step 4: Simplify right side
    451,340.25x = 295,395,732,535.21
  5. Step 5: Solve for x
    x = 295,395,732,535.21/451,340.25
  6. Step 6: Final answer
    x = 654,485.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.