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Finding the Fourth Proportional to 664,318.56, 916,762.14 and 362,512.56

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Solution

The fourth proportional to 664,318.56, 916,762.14 and 362,512.56 is: 500,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,318.56 : 916,762.14 = 362,512.56 : x
  2. Step 2: Convert to fraction form
    664,318.56/916,762.14 = 362,512.56/x
  3. Step 3: Cross multiply
    664,318.56x = 916,762.14 × 362,512.56
  4. Step 4: Simplify right side
    664,318.56x = 332,337,790,282.48
  5. Step 5: Solve for x
    x = 332,337,790,282.48/664,318.56
  6. Step 6: Final answer
    x = 500,268.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.