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Finding the Fourth Proportional to 373,479.14, 515,441.14 and 228,369.97

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Solution

The fourth proportional to 373,479.14, 515,441.14 and 228,369.97 is: 315,174.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,479.14 : 515,441.14 = 228,369.97 : x
  2. Step 2: Convert to fraction form
    373,479.14/515,441.14 = 228,369.97/x
  3. Step 3: Cross multiply
    373,479.14x = 515,441.14 × 228,369.97
  4. Step 4: Simplify right side
    373,479.14x = 117,711,277,678.57
  5. Step 5: Solve for x
    x = 117,711,277,678.57/373,479.14
  6. Step 6: Final answer
    x = 315,174.97

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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.