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Finding the Fourth Proportional to 702,626.31, 969,623.51 and 380,336.31

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Solution

The fourth proportional to 702,626.31, 969,623.51 and 380,336.31 is: 524,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,626.31 : 969,623.51 = 380,336.31 : x
  2. Step 2: Convert to fraction form
    702,626.31/969,623.51 = 380,336.31/x
  3. Step 3: Cross multiply
    702,626.31x = 969,623.51 × 380,336.31
  4. Step 4: Simplify right side
    702,626.31x = 368,783,025,980.97
  5. Step 5: Solve for x
    x = 368,783,025,980.97/702,626.31
  6. Step 6: Final answer
    x = 524,863.67

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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.