Home / 641,550.47-885,308.09-365,919.21

Finding the Fourth Proportional to 641,550.47, 885,308.09 and 365,919.21

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Solution

The fourth proportional to 641,550.47, 885,308.09 and 365,919.21 is: 504,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,550.47 : 885,308.09 = 365,919.21 : x
  2. Step 2: Convert to fraction form
    641,550.47/885,308.09 = 365,919.21/x
  3. Step 3: Cross multiply
    641,550.47x = 885,308.09 × 365,919.21
  4. Step 4: Simplify right side
    641,550.47x = 323,951,236,899.41
  5. Step 5: Solve for x
    x = 323,951,236,899.41/641,550.47
  6. Step 6: Final answer
    x = 504,950.51

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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.