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Finding the Fourth Proportional to 1,855,265,797.60, 2,783,234,619.60 and 932,820,690.40

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Solution

The fourth proportional to 1,855,265,797.60, 2,783,234,619.60 and 932,820,690.40 is: 1,399,399,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,265,797.60 : 2,783,234,619.60 = 932,820,690.40 : x
  2. Step 2: Convert to fraction form
    1,855,265,797.60/2,783,234,619.60 = 932,820,690.40/x
  3. Step 3: Cross multiply
    1,855,265,797.60x = 2,783,234,619.60 × 932,820,690.40
  4. Step 4: Simplify right side
    1,855,265,797.60x = 2,596,258,839,400,453,120
  5. Step 5: Solve for x
    x = 2,596,258,839,400,453,120/1,855,265,797.60
  6. Step 6: Final answer
    x = 1,399,399,936.53

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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.