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Finding the Third Proportional to 917,854 and 1,988,254

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Solution

The third proportional to 917,854 and 1,988,254 is: 4,306,952.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,854 : 1,988,254 = 1,988,254 : x
  2. Step 2: Convert to fraction form
    917,854/1,988,254 = 1,988,254/x
  3. Step 3: Cross multiply
    917,854x = 1,988,254 × 1,988,254
  4. Step 4: Simplify right side
    917,854x = 3,953,153,968,516
  5. Step 5: Solve for x
    x = 3,953,153,968,516/917,854
  6. Step 6: Final answer
    x = 4,306,952.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.