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Finding the Third Proportional to 631,947 and 1,403,862

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Solution

The third proportional to 631,947 and 1,403,862 is: 3,118,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,947 : 1,403,862 = 1,403,862 : x
  2. Step 2: Convert to fraction form
    631,947/1,403,862 = 1,403,862/x
  3. Step 3: Cross multiply
    631,947x = 1,403,862 × 1,403,862
  4. Step 4: Simplify right side
    631,947x = 1,970,828,515,044
  5. Step 5: Solve for x
    x = 1,970,828,515,044/631,947
  6. Step 6: Final answer
    x = 3,118,661.08

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.