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Finding the Third Proportional to 874,421 and 1,286,625.50

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Solution

The third proportional to 874,421 and 1,286,625.50 is: 1,893,144.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,421 : 1,286,625.50 = 1,286,625.50 : x
  2. Step 2: Convert to fraction form
    874,421/1,286,625.50 = 1,286,625.50/x
  3. Step 3: Cross multiply
    874,421x = 1,286,625.50 × 1,286,625.50
  4. Step 4: Simplify right side
    874,421x = 1,655,405,177,250.25
  5. Step 5: Solve for x
    x = 1,655,405,177,250.25/874,421
  6. Step 6: Final answer
    x = 1,893,144.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.