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Finding the Fourth Proportional to 641,649.96, 885,580.11 and 366,097.77

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Solution

The fourth proportional to 641,649.96, 885,580.11 and 366,097.77 is: 505,273.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,649.96 : 885,580.11 = 366,097.77 : x
  2. Step 2: Convert to fraction form
    641,649.96/885,580.11 = 366,097.77/x
  3. Step 3: Cross multiply
    641,649.96x = 885,580.11 × 366,097.77
  4. Step 4: Simplify right side
    641,649.96x = 324,208,903,427.36
  5. Step 5: Solve for x
    x = 324,208,903,427.36/641,649.96
  6. Step 6: Final answer
    x = 505,273.78

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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.