Home / 711,517.50-981,947.43-405,601.17

Finding the Fourth Proportional to 711,517.50, 981,947.43 and 405,601.17

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Solution

The fourth proportional to 711,517.50, 981,947.43 and 405,601.17 is: 559,759.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,517.50 : 981,947.43 = 405,601.17 : x
  2. Step 2: Convert to fraction form
    711,517.50/981,947.43 = 405,601.17/x
  3. Step 3: Cross multiply
    711,517.50x = 981,947.43 × 405,601.17
  4. Step 4: Simplify right side
    711,517.50x = 398,279,026,486.49
  5. Step 5: Solve for x
    x = 398,279,026,486.49/711,517.50
  6. Step 6: Final answer
    x = 559,759.99

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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.