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Finding the Third Proportional to 563,886 and 863,688

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Solution

The third proportional to 563,886 and 863,688 is: 1,322,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,886 : 863,688 = 863,688 : x
  2. Step 2: Convert to fraction form
    563,886/863,688 = 863,688/x
  3. Step 3: Cross multiply
    563,886x = 863,688 × 863,688
  4. Step 4: Simplify right side
    563,886x = 745,956,961,344
  5. Step 5: Solve for x
    x = 745,956,961,344/563,886
  6. Step 6: Final answer
    x = 1,322,886.12

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.