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Finding the Third Proportional to 889,490 and 1,310,715

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Solution

The third proportional to 889,490 and 1,310,715 is: 1,931,414.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,490 : 1,310,715 = 1,310,715 : x
  2. Step 2: Convert to fraction form
    889,490/1,310,715 = 1,310,715/x
  3. Step 3: Cross multiply
    889,490x = 1,310,715 × 1,310,715
  4. Step 4: Simplify right side
    889,490x = 1,717,973,811,225
  5. Step 5: Solve for x
    x = 1,717,973,811,225/889,490
  6. Step 6: Final answer
    x = 1,931,414.42

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.