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Finding the Fourth Proportional to 775,494,788.94, 1,070,177,729.94 and 440,967,336.12

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Solution

The fourth proportional to 775,494,788.94, 1,070,177,729.94 and 440,967,336.12 is: 608,532,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,494,788.94 : 1,070,177,729.94 = 440,967,336.12 : x
  2. Step 2: Convert to fraction form
    775,494,788.94/1,070,177,729.94 = 440,967,336.12/x
  3. Step 3: Cross multiply
    775,494,788.94x = 1,070,177,729.94 × 440,967,336.12
  4. Step 4: Simplify right side
    775,494,788.94x = 471,913,422,746,590,592
  5. Step 5: Solve for x
    x = 471,913,422,746,590,592/775,494,788.94
  6. Step 6: Final answer
    x = 608,532,035.90

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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.