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Finding the Third Proportional to 528,030 and 818,019

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Solution

The third proportional to 528,030 and 818,019 is: 1,267,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,030 : 818,019 = 818,019 : x
  2. Step 2: Convert to fraction form
    528,030/818,019 = 818,019/x
  3. Step 3: Cross multiply
    528,030x = 818,019 × 818,019
  4. Step 4: Simplify right side
    528,030x = 669,155,084,361
  5. Step 5: Solve for x
    x = 669,155,084,361/528,030
  6. Step 6: Final answer
    x = 1,267,267.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.