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Finding the Third Proportional to 831,156 and 1,263,494.25

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Solution

The third proportional to 831,156 and 1,263,494.25 is: 1,920,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,156 : 1,263,494.25 = 1,263,494.25 : x
  2. Step 2: Convert to fraction form
    831,156/1,263,494.25 = 1,263,494.25/x
  3. Step 3: Cross multiply
    831,156x = 1,263,494.25 × 1,263,494.25
  4. Step 4: Simplify right side
    831,156x = 1,596,417,719,783.06
  5. Step 5: Solve for x
    x = 1,596,417,719,783.06/831,156
  6. Step 6: Final answer
    x = 1,920,719.72

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.