Home / 711,202.03-981,427.56-405,344.61

Finding the Fourth Proportional to 711,202.03, 981,427.56 and 405,344.61

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Solution

The fourth proportional to 711,202.03, 981,427.56 and 405,344.61 is: 559,357.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,202.03 : 981,427.56 = 405,344.61 : x
  2. Step 2: Convert to fraction form
    711,202.03/981,427.56 = 405,344.61/x
  3. Step 3: Cross multiply
    711,202.03x = 981,427.56 × 405,344.61
  4. Step 4: Simplify right side
    711,202.03x = 397,816,370,031.41
  5. Step 5: Solve for x
    x = 397,816,370,031.41/711,202.03
  6. Step 6: Final answer
    x = 559,357.76

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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.