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Finding the Third Proportional to 866,811 and 1,291,036.50

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Solution

The third proportional to 866,811 and 1,291,036.50 is: 1,922,881.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,811 : 1,291,036.50 = 1,291,036.50 : x
  2. Step 2: Convert to fraction form
    866,811/1,291,036.50 = 1,291,036.50/x
  3. Step 3: Cross multiply
    866,811x = 1,291,036.50 × 1,291,036.50
  4. Step 4: Simplify right side
    866,811x = 1,666,775,244,332.25
  5. Step 5: Solve for x
    x = 1,666,775,244,332.25/866,811
  6. Step 6: Final answer
    x = 1,922,881.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.