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Finding the Fourth Proportional to 379,340.54, 569,330.05 and 189,744.04

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Solution

The fourth proportional to 379,340.54, 569,330.05 and 189,744.04 is: 284,775.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,340.54 : 569,330.05 = 189,744.04 : x
  2. Step 2: Convert to fraction form
    379,340.54/569,330.05 = 189,744.04/x
  3. Step 3: Cross multiply
    379,340.54x = 569,330.05 × 189,744.04
  4. Step 4: Simplify right side
    379,340.54x = 108,026,983,780.40
  5. Step 5: Solve for x
    x = 108,026,983,780.40/379,340.54
  6. Step 6: Final answer
    x = 284,775.74

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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.