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Finding the Third Proportional to 266,451 and 572,430

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Solution

The third proportional to 266,451 and 572,430 is: 1,229,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,451 : 572,430 = 572,430 : x
  2. Step 2: Convert to fraction form
    266,451/572,430 = 572,430/x
  3. Step 3: Cross multiply
    266,451x = 572,430 × 572,430
  4. Step 4: Simplify right side
    266,451x = 327,676,104,900
  5. Step 5: Solve for x
    x = 327,676,104,900/266,451
  6. Step 6: Final answer
    x = 1,229,779.98

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.