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Finding the Fourth Proportional to 365,521.68, 504,481.68 and 212,648.40

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Solution

The fourth proportional to 365,521.68, 504,481.68 and 212,648.40 is: 293,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,521.68 : 504,481.68 = 212,648.40 : x
  2. Step 2: Convert to fraction form
    365,521.68/504,481.68 = 212,648.40/x
  3. Step 3: Cross multiply
    365,521.68x = 504,481.68 × 212,648.40
  4. Step 4: Simplify right side
    365,521.68x = 107,277,222,081.31
  5. Step 5: Solve for x
    x = 107,277,222,081.31/365,521.68
  6. Step 6: Final answer
    x = 293,490.72

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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.