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Finding the Fourth Proportional to 380,940.58, 572,122.05 and 335,364.51

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Solution

The fourth proportional to 380,940.58, 572,122.05 and 335,364.51 is: 503,672.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,940.58 : 572,122.05 = 335,364.51 : x
  2. Step 2: Convert to fraction form
    380,940.58/572,122.05 = 335,364.51/x
  3. Step 3: Cross multiply
    380,940.58x = 572,122.05 × 335,364.51
  4. Step 4: Simplify right side
    380,940.58x = 191,869,430,958.45
  5. Step 5: Solve for x
    x = 191,869,430,958.45/380,940.58
  6. Step 6: Final answer
    x = 503,672.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.