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Finding the Fourth Proportional to 417,830.96, 626,672.31 and 190,073.54

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Solution

The fourth proportional to 417,830.96, 626,672.31 and 190,073.54 is: 285,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,830.96 : 626,672.31 = 190,073.54 : x
  2. Step 2: Convert to fraction form
    417,830.96/626,672.31 = 190,073.54/x
  3. Step 3: Cross multiply
    417,830.96x = 626,672.31 × 190,073.54
  4. Step 4: Simplify right side
    417,830.96x = 119,113,824,381.68
  5. Step 5: Solve for x
    x = 119,113,824,381.68/417,830.96
  6. Step 6: Final answer
    x = 285,076.59

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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.