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Finding the Fourth Proportional to 313,731.77, 470,268.69 and 153,586.88

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Solution

The fourth proportional to 313,731.77, 470,268.69 and 153,586.88 is: 230,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,731.77 : 470,268.69 = 153,586.88 : x
  2. Step 2: Convert to fraction form
    313,731.77/470,268.69 = 153,586.88/x
  3. Step 3: Cross multiply
    313,731.77x = 470,268.69 × 153,586.88
  4. Step 4: Simplify right side
    313,731.77x = 72,227,098,507.44
  5. Step 5: Solve for x
    x = 72,227,098,507.44/313,731.77
  6. Step 6: Final answer
    x = 230,219.27

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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.