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Finding the Fourth Proportional to 500,683.55, 690,940.45 and 271,245.32

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Solution

The fourth proportional to 500,683.55, 690,940.45 and 271,245.32 is: 374,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,683.55 : 690,940.45 = 271,245.32 : x
  2. Step 2: Convert to fraction form
    500,683.55/690,940.45 = 271,245.32/x
  3. Step 3: Cross multiply
    500,683.55x = 690,940.45 × 271,245.32
  4. Step 4: Simplify right side
    500,683.55x = 187,414,361,733.84
  5. Step 5: Solve for x
    x = 187,414,361,733.84/500,683.55
  6. Step 6: Final answer
    x = 374,317.00

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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.