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Finding the Third Proportional to 459,336 and 670,860

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Solution

The third proportional to 459,336 and 670,860 is: 979,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,336 : 670,860 = 670,860 : x
  2. Step 2: Convert to fraction form
    459,336/670,860 = 670,860/x
  3. Step 3: Cross multiply
    459,336x = 670,860 × 670,860
  4. Step 4: Simplify right side
    459,336x = 450,053,139,600
  5. Step 5: Solve for x
    x = 450,053,139,600/459,336
  6. Step 6: Final answer
    x = 979,790.70

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.