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Finding the Third Proportional to 873,688 and 1,318,552

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Solution

The third proportional to 873,688 and 1,318,552 is: 1,989,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,688 : 1,318,552 = 1,318,552 : x
  2. Step 2: Convert to fraction form
    873,688/1,318,552 = 1,318,552/x
  3. Step 3: Cross multiply
    873,688x = 1,318,552 × 1,318,552
  4. Step 4: Simplify right side
    873,688x = 1,738,579,376,704
  5. Step 5: Solve for x
    x = 1,738,579,376,704/873,688
  6. Step 6: Final answer
    x = 1,989,931.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.