Home / 861,531.45-1,188,893.21-479,550.03

Finding the Fourth Proportional to 861,531.45, 1,188,893.21 and 479,550.03

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Solution

The fourth proportional to 861,531.45, 1,188,893.21 and 479,550.03 is: 661,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,531.45 : 1,188,893.21 = 479,550.03 : x
  2. Step 2: Convert to fraction form
    861,531.45/1,188,893.21 = 479,550.03/x
  3. Step 3: Cross multiply
    861,531.45x = 1,188,893.21 × 479,550.03
  4. Step 4: Simplify right side
    861,531.45x = 570,133,772,124.55
  5. Step 5: Solve for x
    x = 570,133,772,124.55/861,531.45
  6. Step 6: Final answer
    x = 661,767.80

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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.