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Finding the Third Proportional to 401,625 and 535,440

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Solution

The third proportional to 401,625 and 535,440 is: 713,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,625 : 535,440 = 535,440 : x
  2. Step 2: Convert to fraction form
    401,625/535,440 = 535,440/x
  3. Step 3: Cross multiply
    401,625x = 535,440 × 535,440
  4. Step 4: Simplify right side
    401,625x = 286,695,993,600
  5. Step 5: Solve for x
    x = 286,695,993,600/401,625
  6. Step 6: Final answer
    x = 713,840.01

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.