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Finding the Third Proportional to 433,440 and 575,129

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Solution

The third proportional to 433,440 and 575,129 is: 763,135.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,440 : 575,129 = 575,129 : x
  2. Step 2: Convert to fraction form
    433,440/575,129 = 575,129/x
  3. Step 3: Cross multiply
    433,440x = 575,129 × 575,129
  4. Step 4: Simplify right side
    433,440x = 330,773,366,641
  5. Step 5: Solve for x
    x = 330,773,366,641/433,440
  6. Step 6: Final answer
    x = 763,135.31

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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.