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Finding the Fourth Proportional to 873,765,815.20, 1,310,648,722.80 and 227,533,559.20

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Solution

The fourth proportional to 873,765,815.20, 1,310,648,722.80 and 227,533,559.20 is: 341,300,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,765,815.20 : 1,310,648,722.80 = 227,533,559.20 : x
  2. Step 2: Convert to fraction form
    873,765,815.20/1,310,648,722.80 = 227,533,559.20/x
  3. Step 3: Cross multiply
    873,765,815.20x = 1,310,648,722.80 × 227,533,559.20
  4. Step 4: Simplify right side
    873,765,815.20x = 298,216,568,759,618,176
  5. Step 5: Solve for x
    x = 298,216,568,759,618,176/873,765,815.20
  6. Step 6: Final answer
    x = 341,300,338.80

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Double scale
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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.