Home / 945,435.39-1,304,709.17-515,717.43

Finding the Fourth Proportional to 945,435.39, 1,304,709.17 and 515,717.43

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Solution

The fourth proportional to 945,435.39, 1,304,709.17 and 515,717.43 is: 711,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,435.39 : 1,304,709.17 = 515,717.43 : x
  2. Step 2: Convert to fraction form
    945,435.39/1,304,709.17 = 515,717.43/x
  3. Step 3: Cross multiply
    945,435.39x = 1,304,709.17 × 515,717.43
  4. Step 4: Simplify right side
    945,435.39x = 672,861,257,471.25
  5. Step 5: Solve for x
    x = 672,861,257,471.25/945,435.39
  6. Step 6: Final answer
    x = 711,694.60

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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.