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Finding the Fourth Proportional to 313,905.80, 470,858.70 and 114,232.70

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Solution

The fourth proportional to 313,905.80, 470,858.70 and 114,232.70 is: 171,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,905.80 : 470,858.70 = 114,232.70 : x
  2. Step 2: Convert to fraction form
    313,905.80/470,858.70 = 114,232.70/x
  3. Step 3: Cross multiply
    313,905.80x = 470,858.70 × 114,232.70
  4. Step 4: Simplify right side
    313,905.80x = 53,787,460,619.49
  5. Step 5: Solve for x
    x = 53,787,460,619.49/313,905.80
  6. Step 6: Final answer
    x = 171,349.05

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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.