Home / 486,100.40-727,984.20-236,490.80

Finding the Fourth Proportional to 486,100.40, 727,984.20 and 236,490.80

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Solution

The fourth proportional to 486,100.40, 727,984.20 and 236,490.80 is: 354,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,100.40 : 727,984.20 = 236,490.80 : x
  2. Step 2: Convert to fraction form
    486,100.40/727,984.20 = 236,490.80/x
  3. Step 3: Cross multiply
    486,100.40x = 727,984.20 × 236,490.80
  4. Step 4: Simplify right side
    486,100.40x = 172,161,565,845.36
  5. Step 5: Solve for x
    x = 172,161,565,845.36/486,100.40
  6. Step 6: Final answer
    x = 354,168.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.