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Finding the Fourth Proportional to 374,736.74, 517,123.71 and 213,643.67

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Solution

The fourth proportional to 374,736.74, 517,123.71 and 213,643.67 is: 294,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,736.74 : 517,123.71 = 213,643.67 : x
  2. Step 2: Convert to fraction form
    374,736.74/517,123.71 = 213,643.67/x
  3. Step 3: Cross multiply
    374,736.74x = 517,123.71 × 213,643.67
  4. Step 4: Simplify right side
    374,736.74x = 110,480,204,662.80
  5. Step 5: Solve for x
    x = 110,480,204,662.80/374,736.74
  6. Step 6: Final answer
    x = 294,820.86

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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.