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Finding the Third Proportional to 450,117 and 696,741.75

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Solution

The third proportional to 450,117 and 696,741.75 is: 1,078,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,117 : 696,741.75 = 696,741.75 : x
  2. Step 2: Convert to fraction form
    450,117/696,741.75 = 696,741.75/x
  3. Step 3: Cross multiply
    450,117x = 696,741.75 × 696,741.75
  4. Step 4: Simplify right side
    450,117x = 485,449,066,193.06
  5. Step 5: Solve for x
    x = 485,449,066,193.06/450,117
  6. Step 6: Final answer
    x = 1,078,495.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.