Home / 434,664.20-651,996.30-418,917.80

Finding the Fourth Proportional to 434,664.20, 651,996.30 and 418,917.80

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Solution

The fourth proportional to 434,664.20, 651,996.30 and 418,917.80 is: 628,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,664.20 : 651,996.30 = 418,917.80 : x
  2. Step 2: Convert to fraction form
    434,664.20/651,996.30 = 418,917.80/x
  3. Step 3: Cross multiply
    434,664.20x = 651,996.30 × 418,917.80
  4. Step 4: Simplify right side
    434,664.20x = 273,132,855,604.14
  5. Step 5: Solve for x
    x = 273,132,855,604.14/434,664.20
  6. Step 6: Final answer
    x = 628,376.70

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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.