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Finding the Fourth Proportional to 613,074,621.70, 919,611,932.55 and 613,074,621.70

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Solution

The fourth proportional to 613,074,621.70, 919,611,932.55 and 613,074,621.70 is: 919,611,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,074,621.70 : 919,611,932.55 = 613,074,621.70 : x
  2. Step 2: Convert to fraction form
    613,074,621.70/919,611,932.55 = 613,074,621.70/x
  3. Step 3: Cross multiply
    613,074,621.70x = 919,611,932.55 × 613,074,621.70
  4. Step 4: Simplify right side
    613,074,621.70x = 563,790,737,658,897,152
  5. Step 5: Solve for x
    x = 563,790,737,658,897,152/613,074,621.70
  6. Step 6: Final answer
    x = 919,611,932.55

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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.