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Finding the Fourth Proportional to 313,373.80, 470,060.70 and 266,134.60

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Solution

The fourth proportional to 313,373.80, 470,060.70 and 266,134.60 is: 399,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,373.80 : 470,060.70 = 266,134.60 : x
  2. Step 2: Convert to fraction form
    313,373.80/470,060.70 = 266,134.60/x
  3. Step 3: Cross multiply
    313,373.80x = 470,060.70 × 266,134.60
  4. Step 4: Simplify right side
    313,373.80x = 125,099,416,370.22
  5. Step 5: Solve for x
    x = 125,099,416,370.22/313,373.80
  6. Step 6: Final answer
    x = 399,201.90

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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.