Home / 619,400,414.70-929,100,622.05-343,901,400.30

Finding the Fourth Proportional to 619,400,414.70, 929,100,622.05 and 343,901,400.30

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Solution

The fourth proportional to 619,400,414.70, 929,100,622.05 and 343,901,400.30 is: 515,852,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,400,414.70 : 929,100,622.05 = 343,901,400.30 : x
  2. Step 2: Convert to fraction form
    619,400,414.70/929,100,622.05 = 343,901,400.30/x
  3. Step 3: Cross multiply
    619,400,414.70x = 929,100,622.05 × 343,901,400.30
  4. Step 4: Simplify right side
    619,400,414.70x = 319,519,004,942,596,032
  5. Step 5: Solve for x
    x = 319,519,004,942,596,032/619,400,414.70
  6. Step 6: Final answer
    x = 515,852,100.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.