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Finding the Fourth Proportional to 3,800,736,763.20, 5,328,287,409.60 and 3,800,736,763.20

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Solution

The fourth proportional to 3,800,736,763.20, 5,328,287,409.60 and 3,800,736,763.20 is: 5,328,287,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800,736,763.20 : 5,328,287,409.60 = 3,800,736,763.20 : x
  2. Step 2: Convert to fraction form
    3,800,736,763.20/5,328,287,409.60 = 3,800,736,763.20/x
  3. Step 3: Cross multiply
    3,800,736,763.20x = 5,328,287,409.60 × 3,800,736,763.20
  4. Step 4: Simplify right side
    3,800,736,763.20x = 20,251,417,842,562,416,640
  5. Step 5: Solve for x
    x = 20,251,417,842,562,416,640/3,800,736,763.20
  6. Step 6: Final answer
    x = 5,328,287,409.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.