Home / 720,220.20-993,923.92-397,951.06

Finding the Fourth Proportional to 720,220.20, 993,923.92 and 397,951.06

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Solution

The fourth proportional to 720,220.20, 993,923.92 and 397,951.06 is: 549,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,220.20 : 993,923.92 = 397,951.06 : x
  2. Step 2: Convert to fraction form
    720,220.20/993,923.92 = 397,951.06/x
  3. Step 3: Cross multiply
    720,220.20x = 993,923.92 × 397,951.06
  4. Step 4: Simplify right side
    720,220.20x = 395,533,077,523.36
  5. Step 5: Solve for x
    x = 395,533,077,523.36/720,220.20
  6. Step 6: Final answer
    x = 549,183.54

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1.5x scale

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.