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Finding the Fourth Proportional to 1,197,542,709.80, 1,796,314,064.70 and 679,773,084.20

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Solution

The fourth proportional to 1,197,542,709.80, 1,796,314,064.70 and 679,773,084.20 is: 1,019,659,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,542,709.80 : 1,796,314,064.70 = 679,773,084.20 : x
  2. Step 2: Convert to fraction form
    1,197,542,709.80/1,796,314,064.70 = 679,773,084.20/x
  3. Step 3: Cross multiply
    1,197,542,709.80x = 1,796,314,064.70 × 679,773,084.20
  4. Step 4: Simplify right side
    1,197,542,709.80x = 1,221,085,951,952,957,440
  5. Step 5: Solve for x
    x = 1,221,085,951,952,957,440/1,197,542,709.80
  6. Step 6: Final answer
    x = 1,019,659,626.30

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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.