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Finding the Fourth Proportional to 610,892.48, 843,077.79 and 339,011.78

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Solution

The fourth proportional to 610,892.48, 843,077.79 and 339,011.78 is: 467,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,892.48 : 843,077.79 = 339,011.78 : x
  2. Step 2: Convert to fraction form
    610,892.48/843,077.79 = 339,011.78/x
  3. Step 3: Cross multiply
    610,892.48x = 843,077.79 × 339,011.78
  4. Step 4: Simplify right side
    610,892.48x = 285,813,303,746.76
  5. Step 5: Solve for x
    x = 285,813,303,746.76/610,892.48
  6. Step 6: Final answer
    x = 467,861.88

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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.