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Finding the Third Proportional to 891,670 and 1,928,776

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Solution

The third proportional to 891,670 and 1,928,776 is: 4,172,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,670 : 1,928,776 = 1,928,776 : x
  2. Step 2: Convert to fraction form
    891,670/1,928,776 = 1,928,776/x
  3. Step 3: Cross multiply
    891,670x = 1,928,776 × 1,928,776
  4. Step 4: Simplify right side
    891,670x = 3,720,176,858,176
  5. Step 5: Solve for x
    x = 3,720,176,858,176/891,670
  6. Step 6: Final answer
    x = 4,172,145.37

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.