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Finding the Fourth Proportional to 366,640.32, 505,852.23 and 230,809.86

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Solution

The fourth proportional to 366,640.32, 505,852.23 and 230,809.86 is: 318,447.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,640.32 : 505,852.23 = 230,809.86 : x
  2. Step 2: Convert to fraction form
    366,640.32/505,852.23 = 230,809.86/x
  3. Step 3: Cross multiply
    366,640.32x = 505,852.23 × 230,809.86
  4. Step 4: Simplify right side
    366,640.32x = 116,755,682,386.99
  5. Step 5: Solve for x
    x = 116,755,682,386.99/366,640.32
  6. Step 6: Final answer
    x = 318,447.47

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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.