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Finding the Fourth Proportional to 613,141.06, 919,093.33 and 385,599.29

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Solution

The fourth proportional to 613,141.06, 919,093.33 and 385,599.29 is: 578,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,141.06 : 919,093.33 = 385,599.29 : x
  2. Step 2: Convert to fraction form
    613,141.06/919,093.33 = 385,599.29/x
  3. Step 3: Cross multiply
    613,141.06x = 919,093.33 × 385,599.29
  4. Step 4: Simplify right side
    613,141.06x = 354,401,737,194.40
  5. Step 5: Solve for x
    x = 354,401,737,194.40/613,141.06
  6. Step 6: Final answer
    x = 578,010.12

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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.