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Finding the Fourth Proportional to 610,937.76, 843,107.60 and 338,997.07

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Solution

The fourth proportional to 610,937.76, 843,107.60 and 338,997.07 is: 467,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,937.76 : 843,107.60 = 338,997.07 : x
  2. Step 2: Convert to fraction form
    610,937.76/843,107.60 = 338,997.07/x
  3. Step 3: Cross multiply
    610,937.76x = 843,107.60 × 338,997.07
  4. Step 4: Simplify right side
    610,937.76x = 285,811,006,094.73
  5. Step 5: Solve for x
    x = 285,811,006,094.73/610,937.76
  6. Step 6: Final answer
    x = 467,823.44

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1.5x scale

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.