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Finding the Third Proportional to 190,572 and 416,688

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Solution

The third proportional to 190,572 and 416,688 is: 911,093.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,572 : 416,688 = 416,688 : x
  2. Step 2: Convert to fraction form
    190,572/416,688 = 416,688/x
  3. Step 3: Cross multiply
    190,572x = 416,688 × 416,688
  4. Step 4: Simplify right side
    190,572x = 173,628,889,344
  5. Step 5: Solve for x
    x = 173,628,889,344/190,572
  6. Step 6: Final answer
    x = 911,093.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.