Home / 711,922,293,578.76-982,536,989,693.19-422,891,694,893.60

Finding the Fourth Proportional to 711,922,293,578.76, 982,536,989,693.19 and 422,891,694,893.60

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Solution

The fourth proportional to 711,922,293,578.76, 982,536,989,693.19 and 422,891,694,893.60 is: 583,640,569,504.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,922,293,578.76 : 982,536,989,693.19 = 422,891,694,893.60 : x
  2. Step 2: Convert to fraction form
    711,922,293,578.76/982,536,989,693.19 = 422,891,694,893.60/x
  3. Step 3: Cross multiply
    711,922,293,578.76x = 982,536,989,693.19 × 422,891,694,893.60
  4. Step 4: Simplify right side
    711,922,293,578.76x = 415,506,732,867,008,663,126,016
  5. Step 5: Solve for x
    x = 415,506,732,867,008,663,126,016/711,922,293,578.76
  6. Step 6: Final answer
    x = 583,640,569,504.15

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Double scale
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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.