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Finding the Third Proportional to 282,588 and 396,046

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Solution

The third proportional to 282,588 and 396,046 is: 555,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,588 : 396,046 = 396,046 : x
  2. Step 2: Convert to fraction form
    282,588/396,046 = 396,046/x
  3. Step 3: Cross multiply
    282,588x = 396,046 × 396,046
  4. Step 4: Simplify right side
    282,588x = 156,852,434,116
  5. Step 5: Solve for x
    x = 156,852,434,116/282,588
  6. Step 6: Final answer
    x = 555,056.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.