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Finding the Third Proportional to 216,335 and 469,986

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Solution

The third proportional to 216,335 and 469,986 is: 1,021,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,335 : 469,986 = 469,986 : x
  2. Step 2: Convert to fraction form
    216,335/469,986 = 469,986/x
  3. Step 3: Cross multiply
    216,335x = 469,986 × 469,986
  4. Step 4: Simplify right side
    216,335x = 220,886,840,196
  5. Step 5: Solve for x
    x = 220,886,840,196/216,335
  6. Step 6: Final answer
    x = 1,021,040.70

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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.