Home / 711,552.33-981,965.45-389,262.44

Finding the Fourth Proportional to 711,552.33, 981,965.45 and 389,262.44

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Solution

The fourth proportional to 711,552.33, 981,965.45 and 389,262.44 is: 537,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,552.33 : 981,965.45 = 389,262.44 : x
  2. Step 2: Convert to fraction form
    711,552.33/981,965.45 = 389,262.44/x
  3. Step 3: Cross multiply
    711,552.33x = 981,965.45 × 389,262.44
  4. Step 4: Simplify right side
    711,552.33x = 382,242,260,206.56
  5. Step 5: Solve for x
    x = 382,242,260,206.56/711,552.33
  6. Step 6: Final answer
    x = 537,194.87

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Double scale
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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.