Home / 426,550.44-639,945.23-186,685.25

Finding the Fourth Proportional to 426,550.44, 639,945.23 and 186,685.25

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Solution

The fourth proportional to 426,550.44, 639,945.23 and 186,685.25 is: 280,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,550.44 : 639,945.23 = 186,685.25 : x
  2. Step 2: Convert to fraction form
    426,550.44/639,945.23 = 186,685.25/x
  3. Step 3: Cross multiply
    426,550.44x = 639,945.23 × 186,685.25
  4. Step 4: Simplify right side
    426,550.44x = 119,468,331,115.71
  5. Step 5: Solve for x
    x = 119,468,331,115.71/426,550.44
  6. Step 6: Final answer
    x = 280,080.20

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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.