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Finding the Fourth Proportional to 503,760.72, 694,965.11 and 340,364.63

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Solution

The fourth proportional to 503,760.72, 694,965.11 and 340,364.63 is: 469,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,760.72 : 694,965.11 = 340,364.63 : x
  2. Step 2: Convert to fraction form
    503,760.72/694,965.11 = 340,364.63/x
  3. Step 3: Cross multiply
    503,760.72x = 694,965.11 × 340,364.63
  4. Step 4: Simplify right side
    503,760.72x = 236,541,545,116.38
  5. Step 5: Solve for x
    x = 236,541,545,116.38/503,760.72
  6. Step 6: Final answer
    x = 469,551.39

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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.