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Finding the Third Proportional to 378,570 and 833,955

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Solution

The third proportional to 378,570 and 833,955 is: 1,837,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,570 : 833,955 = 833,955 : x
  2. Step 2: Convert to fraction form
    378,570/833,955 = 833,955/x
  3. Step 3: Cross multiply
    378,570x = 833,955 × 833,955
  4. Step 4: Simplify right side
    378,570x = 695,480,942,025
  5. Step 5: Solve for x
    x = 695,480,942,025/378,570
  6. Step 6: Final answer
    x = 1,837,126.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.