Home / 1,295,388,903.70-1,943,083,355.55-640,441,015.30

Finding the Fourth Proportional to 1,295,388,903.70, 1,943,083,355.55 and 640,441,015.30

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Solution

The fourth proportional to 1,295,388,903.70, 1,943,083,355.55 and 640,441,015.30 is: 960,661,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,388,903.70 : 1,943,083,355.55 = 640,441,015.30 : x
  2. Step 2: Convert to fraction form
    1,295,388,903.70/1,943,083,355.55 = 640,441,015.30/x
  3. Step 3: Cross multiply
    1,295,388,903.70x = 1,943,083,355.55 × 640,441,015.30
  4. Step 4: Simplify right side
    1,295,388,903.70x = 1,244,430,277,040,972,800
  5. Step 5: Solve for x
    x = 1,244,430,277,040,972,800/1,295,388,903.70
  6. Step 6: Final answer
    x = 960,661,522.95

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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.