Home / 981,440.51-1,354,393.59-551,716.88

Finding the Fourth Proportional to 981,440.51, 1,354,393.59 and 551,716.88

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Solution

The fourth proportional to 981,440.51, 1,354,393.59 and 551,716.88 is: 761,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,440.51 : 1,354,393.59 = 551,716.88 : x
  2. Step 2: Convert to fraction form
    981,440.51/1,354,393.59 = 551,716.88/x
  3. Step 3: Cross multiply
    981,440.51x = 1,354,393.59 × 551,716.88
  4. Step 4: Simplify right side
    981,440.51x = 747,241,805,766.80
  5. Step 5: Solve for x
    x = 747,241,805,766.80/981,440.51
  6. Step 6: Final answer
    x = 761,372.49

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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.