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Finding the Fourth Proportional to 377,441.78, 520,865.64 and 205,364.97

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Solution

The fourth proportional to 377,441.78, 520,865.64 and 205,364.97 is: 283,401.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,441.78 : 520,865.64 = 205,364.97 : x
  2. Step 2: Convert to fraction form
    377,441.78/520,865.64 = 205,364.97/x
  3. Step 3: Cross multiply
    377,441.78x = 520,865.64 × 205,364.97
  4. Step 4: Simplify right side
    377,441.78x = 106,967,556,532.63
  5. Step 5: Solve for x
    x = 106,967,556,532.63/377,441.78
  6. Step 6: Final answer
    x = 283,401.48

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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.