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Finding the Fourth Proportional to 619,010.84, 928,478.04 and 219,599

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Solution

The fourth proportional to 619,010.84, 928,478.04 and 219,599 is: 329,384.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,010.84 : 928,478.04 = 219,599 : x
  2. Step 2: Convert to fraction form
    619,010.84/928,478.04 = 219,599/x
  3. Step 3: Cross multiply
    619,010.84x = 928,478.04 × 219,599
  4. Step 4: Simplify right side
    619,010.84x = 203,892,849,105.96
  5. Step 5: Solve for x
    x = 203,892,849,105.96/619,010.84
  6. Step 6: Final answer
    x = 329,384.94

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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.