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Finding the Third Proportional to 868,487 and 1,913,668.50

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Solution

The third proportional to 868,487 and 1,913,668.50 is: 4,216,674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,487 : 1,913,668.50 = 1,913,668.50 : x
  2. Step 2: Convert to fraction form
    868,487/1,913,668.50 = 1,913,668.50/x
  3. Step 3: Cross multiply
    868,487x = 1,913,668.50 × 1,913,668.50
  4. Step 4: Simplify right side
    868,487x = 3,662,127,127,892.25
  5. Step 5: Solve for x
    x = 3,662,127,127,892.25/868,487
  6. Step 6: Final answer
    x = 4,216,674.66

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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.