Home / 720,591,812,635.35-994,445,371,844.45-395,442,740,291.25

Finding the Fourth Proportional to 720,591,812,635.35, 994,445,371,844.45 and 395,442,740,291.25

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Solution

The fourth proportional to 720,591,812,635.35, 994,445,371,844.45 and 395,442,740,291.25 is: 545,726,715,203.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,591,812,635.35 : 994,445,371,844.45 = 395,442,740,291.25 : x
  2. Step 2: Convert to fraction form
    720,591,812,635.35/994,445,371,844.45 = 395,442,740,291.25/x
  3. Step 3: Cross multiply
    720,591,812,635.35x = 994,445,371,844.45 × 395,442,740,291.25
  4. Step 4: Simplify right side
    720,591,812,635.35x = 393,246,202,912,120,353,325,056
  5. Step 5: Solve for x
    x = 393,246,202,912,120,353,325,056/720,591,812,635.35
  6. Step 6: Final answer
    x = 545,726,715,203.63

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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.