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Finding the Third Proportional to 858,643 and 1,864,908.50

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Solution

The third proportional to 858,643 and 1,864,908.50 is: 4,050,442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,643 : 1,864,908.50 = 1,864,908.50 : x
  2. Step 2: Convert to fraction form
    858,643/1,864,908.50 = 1,864,908.50/x
  3. Step 3: Cross multiply
    858,643x = 1,864,908.50 × 1,864,908.50
  4. Step 4: Simplify right side
    858,643x = 3,477,883,713,372.25
  5. Step 5: Solve for x
    x = 3,477,883,713,372.25/858,643
  6. Step 6: Final answer
    x = 4,050,442.05

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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.