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Finding the Fourth Proportional to 313,968.12, 470,968.46 and 103,622.46

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Solution

The fourth proportional to 313,968.12, 470,968.46 and 103,622.46 is: 155,439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,968.12 : 470,968.46 = 103,622.46 : x
  2. Step 2: Convert to fraction form
    313,968.12/470,968.46 = 103,622.46/x
  3. Step 3: Cross multiply
    313,968.12x = 470,968.46 × 103,622.46
  4. Step 4: Simplify right side
    313,968.12x = 48,802,910,407.61
  5. Step 5: Solve for x
    x = 48,802,910,407.61/313,968.12
  6. Step 6: Final answer
    x = 155,439.06

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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.