Home / 510,446.43-766,143.30-257,904.33

Finding the Fourth Proportional to 510,446.43, 766,143.30 and 257,904.33

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Solution

The fourth proportional to 510,446.43, 766,143.30 and 257,904.33 is: 387,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,446.43 : 766,143.30 = 257,904.33 : x
  2. Step 2: Convert to fraction form
    510,446.43/766,143.30 = 257,904.33/x
  3. Step 3: Cross multiply
    510,446.43x = 766,143.30 × 257,904.33
  4. Step 4: Simplify right side
    510,446.43x = 197,591,674,470.49
  5. Step 5: Solve for x
    x = 197,591,674,470.49/510,446.43
  6. Step 6: Final answer
    x = 387,095.81

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Double scale
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Similar ratio
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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.