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Finding the Third Proportional to 720,630 and 1,043,712

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Solution

The third proportional to 720,630 and 1,043,712 is: 1,511,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,630 : 1,043,712 = 1,043,712 : x
  2. Step 2: Convert to fraction form
    720,630/1,043,712 = 1,043,712/x
  3. Step 3: Cross multiply
    720,630x = 1,043,712 × 1,043,712
  4. Step 4: Simplify right side
    720,630x = 1,089,334,738,944
  5. Step 5: Solve for x
    x = 1,089,334,738,944/720,630
  6. Step 6: Final answer
    x = 1,511,642.23

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.