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Finding the Fourth Proportional to 694,613.34, 958,540.23 and 392,813.82

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Solution

The fourth proportional to 694,613.34, 958,540.23 and 392,813.82 is: 542,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,613.34 : 958,540.23 = 392,813.82 : x
  2. Step 2: Convert to fraction form
    694,613.34/958,540.23 = 392,813.82/x
  3. Step 3: Cross multiply
    694,613.34x = 958,540.23 × 392,813.82
  4. Step 4: Simplify right side
    694,613.34x = 376,527,849,369.98
  5. Step 5: Solve for x
    x = 376,527,849,369.98/694,613.34
  6. Step 6: Final answer
    x = 542,068.27

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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.