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Finding the Fourth Proportional to 503,175, 694,381.50 and 276,815.64

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Solution

The fourth proportional to 503,175, 694,381.50 and 276,815.64 is: 382,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,175 : 694,381.50 = 276,815.64 : x
  2. Step 2: Convert to fraction form
    503,175/694,381.50 = 276,815.64/x
  3. Step 3: Cross multiply
    503,175x = 694,381.50 × 276,815.64
  4. Step 4: Simplify right side
    503,175x = 192,215,659,326.66
  5. Step 5: Solve for x
    x = 192,215,659,326.66/503,175
  6. Step 6: Final answer
    x = 382,005.58

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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.