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Finding the Third Proportional to 623,678 and 1,347,136

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Solution

The third proportional to 623,678 and 1,347,136 is: 2,909,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,678 : 1,347,136 = 1,347,136 : x
  2. Step 2: Convert to fraction form
    623,678/1,347,136 = 1,347,136/x
  3. Step 3: Cross multiply
    623,678x = 1,347,136 × 1,347,136
  4. Step 4: Simplify right side
    623,678x = 1,814,775,402,496
  5. Step 5: Solve for x
    x = 1,814,775,402,496/623,678
  6. Step 6: Final answer
    x = 2,909,795.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.