Home / 461,161.20-636,698.88-289,314.96

Finding the Fourth Proportional to 461,161.20, 636,698.88 and 289,314.96

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Solution

The fourth proportional to 461,161.20, 636,698.88 and 289,314.96 is: 399,440.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,161.20 : 636,698.88 = 289,314.96 : x
  2. Step 2: Convert to fraction form
    461,161.20/636,698.88 = 289,314.96/x
  3. Step 3: Cross multiply
    461,161.20x = 636,698.88 × 289,314.96
  4. Step 4: Simplify right side
    461,161.20x = 184,206,510,999.25
  5. Step 5: Solve for x
    x = 184,206,510,999.25/461,161.20
  6. Step 6: Final answer
    x = 399,440.61

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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.