Home / 578,173.38-867,255.20-451,919.86

Finding the Fourth Proportional to 578,173.38, 867,255.20 and 451,919.86

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Solution

The fourth proportional to 578,173.38, 867,255.20 and 451,919.86 is: 677,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,173.38 : 867,255.20 = 451,919.86 : x
  2. Step 2: Convert to fraction form
    578,173.38/867,255.20 = 451,919.86/x
  3. Step 3: Cross multiply
    578,173.38x = 867,255.20 × 451,919.86
  4. Step 4: Simplify right side
    578,173.38x = 391,929,848,568.27
  5. Step 5: Solve for x
    x = 391,929,848,568.27/578,173.38
  6. Step 6: Final answer
    x = 677,875.98

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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.