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Finding the Fourth Proportional to 981,697,069.80, 1,472,545,604.70 and 981,697,069.80

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Solution

The fourth proportional to 981,697,069.80, 1,472,545,604.70 and 981,697,069.80 is: 1,472,545,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,697,069.80 : 1,472,545,604.70 = 981,697,069.80 : x
  2. Step 2: Convert to fraction form
    981,697,069.80/1,472,545,604.70 = 981,697,069.80/x
  3. Step 3: Cross multiply
    981,697,069.80x = 1,472,545,604.70 × 981,697,069.80
  4. Step 4: Simplify right side
    981,697,069.80x = 1,445,593,705,280,859,136
  5. Step 5: Solve for x
    x = 1,445,593,705,280,859,136/981,697,069.80
  6. Step 6: Final answer
    x = 1,472,545,604.70

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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.