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Finding the Third Proportional to 623,552 and 891,728

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Solution

The third proportional to 623,552 and 891,728 is: 1,275,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,552 : 891,728 = 891,728 : x
  2. Step 2: Convert to fraction form
    623,552/891,728 = 891,728/x
  3. Step 3: Cross multiply
    623,552x = 891,728 × 891,728
  4. Step 4: Simplify right side
    623,552x = 795,178,825,984
  5. Step 5: Solve for x
    x = 795,178,825,984/623,552
  6. Step 6: Final answer
    x = 1,275,240.60

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.