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Finding the Third Proportional to 819,333.56 and 1,240,389.28

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Solution

The third proportional to 819,333.56 and 1,240,389.28 is: 1,877,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,333.56 : 1,240,389.28 = 1,240,389.28 : x
  2. Step 2: Convert to fraction form
    819,333.56/1,240,389.28 = 1,240,389.28/x
  3. Step 3: Cross multiply
    819,333.56x = 1,240,389.28 × 1,240,389.28
  4. Step 4: Simplify right side
    819,333.56x = 1,538,565,569,039.89
  5. Step 5: Solve for x
    x = 1,538,565,569,039.89/819,333.56
  6. Step 6: Final answer
    x = 1,877,825.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.