Home / 622,505.20-934,632.60-386,309.20

Finding the Fourth Proportional to 622,505.20, 934,632.60 and 386,309.20

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Solution

The fourth proportional to 622,505.20, 934,632.60 and 386,309.20 is: 580,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,505.20 : 934,632.60 = 386,309.20 : x
  2. Step 2: Convert to fraction form
    622,505.20/934,632.60 = 386,309.20/x
  3. Step 3: Cross multiply
    622,505.20x = 934,632.60 × 386,309.20
  4. Step 4: Simplify right side
    622,505.20x = 361,057,171,999.92
  5. Step 5: Solve for x
    x = 361,057,171,999.92/622,505.20
  6. Step 6: Final answer
    x = 580,006.68

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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.