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Finding the Fourth Proportional to 313,276.17, 469,958.01 and 155,462.25

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Solution

The fourth proportional to 313,276.17, 469,958.01 and 155,462.25 is: 233,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,276.17 : 469,958.01 = 155,462.25 : x
  2. Step 2: Convert to fraction form
    313,276.17/469,958.01 = 155,462.25/x
  3. Step 3: Cross multiply
    313,276.17x = 469,958.01 × 155,462.25
  4. Step 4: Simplify right side
    313,276.17x = 73,060,729,640.12
  5. Step 5: Solve for x
    x = 73,060,729,640.12/313,276.17
  6. Step 6: Final answer
    x = 233,215.09

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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.