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Finding the Third Proportional to 342,710 and 742,624

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Solution

The third proportional to 342,710 and 742,624 is: 1,609,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,710 : 742,624 = 742,624 : x
  2. Step 2: Convert to fraction form
    342,710/742,624 = 742,624/x
  3. Step 3: Cross multiply
    342,710x = 742,624 × 742,624
  4. Step 4: Simplify right side
    342,710x = 551,490,405,376
  5. Step 5: Solve for x
    x = 551,490,405,376/342,710
  6. Step 6: Final answer
    x = 1,609,204.30

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.