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Finding the Third Proportional to 917,340.19 and 1,865,128.78

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Solution

The third proportional to 917,340.19 and 1,865,128.78 is: 3,792,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,340.19 : 1,865,128.78 = 1,865,128.78 : x
  2. Step 2: Convert to fraction form
    917,340.19/1,865,128.78 = 1,865,128.78/x
  3. Step 3: Cross multiply
    917,340.19x = 1,865,128.78 × 1,865,128.78
  4. Step 4: Simplify right side
    917,340.19x = 3,478,705,370,647.11
  5. Step 5: Solve for x
    x = 3,478,705,370,647.11/917,340.19
  6. Step 6: Final answer
    x = 3,792,165.02

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.