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Finding the Third Proportional to 879,896 and 1,372,428

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Solution

The third proportional to 879,896 and 1,372,428 is: 2,140,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,896 : 1,372,428 = 1,372,428 : x
  2. Step 2: Convert to fraction form
    879,896/1,372,428 = 1,372,428/x
  3. Step 3: Cross multiply
    879,896x = 1,372,428 × 1,372,428
  4. Step 4: Simplify right side
    879,896x = 1,883,558,615,184
  5. Step 5: Solve for x
    x = 1,883,558,615,184/879,896
  6. Step 6: Final answer
    x = 2,140,660.50

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.