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Finding the Third Proportional to 664,230 and 1,057,440

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Solution

The third proportional to 664,230 and 1,057,440 is: 1,683,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,230 : 1,057,440 = 1,057,440 : x
  2. Step 2: Convert to fraction form
    664,230/1,057,440 = 1,057,440/x
  3. Step 3: Cross multiply
    664,230x = 1,057,440 × 1,057,440
  4. Step 4: Simplify right side
    664,230x = 1,118,179,353,600
  5. Step 5: Solve for x
    x = 1,118,179,353,600/664,230
  6. Step 6: Final answer
    x = 1,683,421.94

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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.