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Finding the Fourth Proportional to 515,908.60, 773,603.70 and 235,108.60

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Solution

The fourth proportional to 515,908.60, 773,603.70 and 235,108.60 is: 352,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,908.60 : 773,603.70 = 235,108.60 : x
  2. Step 2: Convert to fraction form
    515,908.60/773,603.70 = 235,108.60/x
  3. Step 3: Cross multiply
    515,908.60x = 773,603.70 × 235,108.60
  4. Step 4: Simplify right side
    515,908.60x = 181,880,882,861.82
  5. Step 5: Solve for x
    x = 181,880,882,861.82/515,908.60
  6. Step 6: Final answer
    x = 352,544.78

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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.