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Finding the Third Proportional to 915,426 and 1,331,586

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Solution

The third proportional to 915,426 and 1,331,586 is: 1,936,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,426 : 1,331,586 = 1,331,586 : x
  2. Step 2: Convert to fraction form
    915,426/1,331,586 = 1,331,586/x
  3. Step 3: Cross multiply
    915,426x = 1,331,586 × 1,331,586
  4. Step 4: Simplify right side
    915,426x = 1,773,121,275,396
  5. Step 5: Solve for x
    x = 1,773,121,275,396/915,426
  6. Step 6: Final answer
    x = 1,936,935.67

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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.