Home / 467,939.58-645,756.60-253,079.64

Finding the Fourth Proportional to 467,939.58, 645,756.60 and 253,079.64

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Solution

The fourth proportional to 467,939.58, 645,756.60 and 253,079.64 is: 349,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,939.58 : 645,756.60 = 253,079.64 : x
  2. Step 2: Convert to fraction form
    467,939.58/645,756.60 = 253,079.64/x
  3. Step 3: Cross multiply
    467,939.58x = 645,756.60 × 253,079.64
  4. Step 4: Simplify right side
    467,939.58x = 163,427,847,855.62
  5. Step 5: Solve for x
    x = 163,427,847,855.62/467,939.58
  6. Step 6: Final answer
    x = 349,249.89

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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.