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Finding the Fourth Proportional to 702,285.56, 969,146.94 and 379,988.60

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Solution

The fourth proportional to 702,285.56, 969,146.94 and 379,988.60 is: 524,380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,285.56 : 969,146.94 = 379,988.60 : x
  2. Step 2: Convert to fraction form
    702,285.56/969,146.94 = 379,988.60/x
  3. Step 3: Cross multiply
    702,285.56x = 969,146.94 × 379,988.60
  4. Step 4: Simplify right side
    702,285.56x = 368,264,788,924.88
  5. Step 5: Solve for x
    x = 368,264,788,924.88/702,285.56
  6. Step 6: Final answer
    x = 524,380.41

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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.