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Finding the Fourth Proportional to 313,664,747.70, 439,584,143.10 and 313,664,747.70

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Solution

The fourth proportional to 313,664,747.70, 439,584,143.10 and 313,664,747.70 is: 439,584,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,664,747.70 : 439,584,143.10 = 313,664,747.70 : x
  2. Step 2: Convert to fraction form
    313,664,747.70/439,584,143.10 = 313,664,747.70/x
  3. Step 3: Cross multiply
    313,664,747.70x = 439,584,143.10 × 313,664,747.70
  4. Step 4: Simplify right side
    313,664,747.70x = 137,882,049,338,382,192
  5. Step 5: Solve for x
    x = 137,882,049,338,382,192/313,664,747.70
  6. Step 6: Final answer
    x = 439,584,143.10

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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.