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Finding the Third Proportional to 433,400 and 575,220

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Solution

The third proportional to 433,400 and 575,220 is: 763,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,400 : 575,220 = 575,220 : x
  2. Step 2: Convert to fraction form
    433,400/575,220 = 575,220/x
  3. Step 3: Cross multiply
    433,400x = 575,220 × 575,220
  4. Step 4: Simplify right side
    433,400x = 330,878,048,400
  5. Step 5: Solve for x
    x = 330,878,048,400/433,400
  6. Step 6: Final answer
    x = 763,447.27

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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.