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Finding the Fourth Proportional to 787,297.14, 1,086,993 and 605,688.66

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Solution

The fourth proportional to 787,297.14, 1,086,993 and 605,688.66 is: 836,252.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,297.14 : 1,086,993 = 605,688.66 : x
  2. Step 2: Convert to fraction form
    787,297.14/1,086,993 = 605,688.66/x
  3. Step 3: Cross multiply
    787,297.14x = 1,086,993 × 605,688.66
  4. Step 4: Simplify right side
    787,297.14x = 658,379,333,599.38
  5. Step 5: Solve for x
    x = 658,379,333,599.38/787,297.14
  6. Step 6: Final answer
    x = 836,252.67

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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.