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Finding the Third Proportional to 917,579 and 1,975,774

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Solution

The third proportional to 917,579 and 1,975,774 is: 4,254,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,579 : 1,975,774 = 1,975,774 : x
  2. Step 2: Convert to fraction form
    917,579/1,975,774 = 1,975,774/x
  3. Step 3: Cross multiply
    917,579x = 1,975,774 × 1,975,774
  4. Step 4: Simplify right side
    917,579x = 3,903,682,899,076
  5. Step 5: Solve for x
    x = 3,903,682,899,076/917,579
  6. Step 6: Final answer
    x = 4,254,328.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.