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Finding the Third Proportional to 398,045 and 596,821.50

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Solution

The third proportional to 398,045 and 596,821.50 is: 894,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,045 : 596,821.50 = 596,821.50 : x
  2. Step 2: Convert to fraction form
    398,045/596,821.50 = 596,821.50/x
  3. Step 3: Cross multiply
    398,045x = 596,821.50 × 596,821.50
  4. Step 4: Simplify right side
    398,045x = 356,195,902,862.25
  5. Step 5: Solve for x
    x = 356,195,902,862.25/398,045
  6. Step 6: Final answer
    x = 894,863.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.