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Finding the Third Proportional to 434,632 and 691,548

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Solution

The third proportional to 434,632 and 691,548 is: 1,100,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,632 : 691,548 = 691,548 : x
  2. Step 2: Convert to fraction form
    434,632/691,548 = 691,548/x
  3. Step 3: Cross multiply
    434,632x = 691,548 × 691,548
  4. Step 4: Simplify right side
    434,632x = 478,238,636,304
  5. Step 5: Solve for x
    x = 478,238,636,304/434,632
  6. Step 6: Final answer
    x = 1,100,330.02

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.