Home / 711,088,118.25-981,294,373.42-393,548,983.75

Finding the Fourth Proportional to 711,088,118.25, 981,294,373.42 and 393,548,983.75

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Solution

The fourth proportional to 711,088,118.25, 981,294,373.42 and 393,548,983.75 is: 543,093,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,088,118.25 : 981,294,373.42 = 393,548,983.75 : x
  2. Step 2: Convert to fraction form
    711,088,118.25/981,294,373.42 = 393,548,983.75/x
  3. Step 3: Cross multiply
    711,088,118.25x = 981,294,373.42 × 393,548,983.75
  4. Step 4: Simplify right side
    711,088,118.25x = 386,187,403,419,033,984
  5. Step 5: Solve for x
    x = 386,187,403,419,033,984/711,088,118.25
  6. Step 6: Final answer
    x = 543,093,596.29

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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.