Home / 628,329,194,848.92-867,096,936,984.64-353,978,139,198.36

Finding the Fourth Proportional to 628,329,194,848.92, 867,096,936,984.64 and 353,978,139,198.36

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Solution

The fourth proportional to 628,329,194,848.92, 867,096,936,984.64 and 353,978,139,198.36 is: 488,491,323,934.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,329,194,848.92 : 867,096,936,984.64 = 353,978,139,198.36 : x
  2. Step 2: Convert to fraction form
    628,329,194,848.92/867,096,936,984.64 = 353,978,139,198.36/x
  3. Step 3: Cross multiply
    628,329,194,848.92x = 867,096,936,984.64 × 353,978,139,198.36
  4. Step 4: Simplify right side
    628,329,194,848.92x = 306,933,360,258,420,500,856,832
  5. Step 5: Solve for x
    x = 306,933,360,258,420,500,856,832/628,329,194,848.92
  6. Step 6: Final answer
    x = 488,491,323,934.46

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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.