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Finding the Fourth Proportional to 746,670,448.60, 1,042,919,981 and 746,670,448.60

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Solution

The fourth proportional to 746,670,448.60, 1,042,919,981 and 746,670,448.60 is: 1,042,919,981

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,670,448.60 : 1,042,919,981 = 746,670,448.60 : x
  2. Step 2: Convert to fraction form
    746,670,448.60/1,042,919,981 = 746,670,448.60/x
  3. Step 3: Cross multiply
    746,670,448.60x = 1,042,919,981 × 746,670,448.60
  4. Step 4: Simplify right side
    746,670,448.60x = 778,717,530,067,173,504
  5. Step 5: Solve for x
    x = 778,717,530,067,173,504/746,670,448.60
  6. Step 6: Final answer
    x = 1,042,919,981

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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.