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Finding the Fourth Proportional to 503,393.09, 694,828.85 and 328,989.53

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Solution

The fourth proportional to 503,393.09, 694,828.85 and 328,989.53 is: 454,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,393.09 : 694,828.85 = 328,989.53 : x
  2. Step 2: Convert to fraction form
    503,393.09/694,828.85 = 328,989.53/x
  3. Step 3: Cross multiply
    503,393.09x = 694,828.85 × 328,989.53
  4. Step 4: Simplify right side
    503,393.09x = 228,591,416,791.94
  5. Step 5: Solve for x
    x = 228,591,416,791.94/503,393.09
  6. Step 6: Final answer
    x = 454,101.22

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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.