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Finding the Third Proportional to 917,730 and 1,968,320.25

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Solution

The third proportional to 917,730 and 1,968,320.25 is: 4,221,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,730 : 1,968,320.25 = 1,968,320.25 : x
  2. Step 2: Convert to fraction form
    917,730/1,968,320.25 = 1,968,320.25/x
  3. Step 3: Cross multiply
    917,730x = 1,968,320.25 × 1,968,320.25
  4. Step 4: Simplify right side
    917,730x = 3,874,284,606,560.06
  5. Step 5: Solve for x
    x = 3,874,284,606,560.06/917,730
  6. Step 6: Final answer
    x = 4,221,595.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.