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Finding the Fourth Proportional to 365,722.70, 504,798.76 and 212,790.43

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Solution

The fourth proportional to 365,722.70, 504,798.76 and 212,790.43 is: 293,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,722.70 : 504,798.76 = 212,790.43 : x
  2. Step 2: Convert to fraction form
    365,722.70/504,798.76 = 212,790.43/x
  3. Step 3: Cross multiply
    365,722.70x = 504,798.76 × 212,790.43
  4. Step 4: Simplify right side
    365,722.70x = 107,416,346,673.54
  5. Step 5: Solve for x
    x = 107,416,346,673.54/365,722.70
  6. Step 6: Final answer
    x = 293,709.82

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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.