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Finding the Fourth Proportional to 336,115.70, 470,911.90 and 336,115.70

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Solution

The fourth proportional to 336,115.70, 470,911.90 and 336,115.70 is: 470,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,115.70 : 470,911.90 = 336,115.70 : x
  2. Step 2: Convert to fraction form
    336,115.70/470,911.90 = 336,115.70/x
  3. Step 3: Cross multiply
    336,115.70x = 470,911.90 × 336,115.70
  4. Step 4: Simplify right side
    336,115.70x = 158,280,882,906.83
  5. Step 5: Solve for x
    x = 158,280,882,906.83/336,115.70
  6. Step 6: Final answer
    x = 470,911.90

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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.