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Finding the Fourth Proportional to 651,817.10, 978,163.05 and 296,648.30

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Solution

The fourth proportional to 651,817.10, 978,163.05 and 296,648.30 is: 445,171.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,817.10 : 978,163.05 = 296,648.30 : x
  2. Step 2: Convert to fraction form
    651,817.10/978,163.05 = 296,648.30/x
  3. Step 3: Cross multiply
    651,817.10x = 978,163.05 × 296,648.30
  4. Step 4: Simplify right side
    651,817.10x = 290,170,405,905.32
  5. Step 5: Solve for x
    x = 290,170,405,905.32/651,817.10
  6. Step 6: Final answer
    x = 445,171.51

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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.