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Finding the Third Proportional to 191,779 and 403,776

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Solution

The third proportional to 191,779 and 403,776 is: 850,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,779 : 403,776 = 403,776 : x
  2. Step 2: Convert to fraction form
    191,779/403,776 = 403,776/x
  3. Step 3: Cross multiply
    191,779x = 403,776 × 403,776
  4. Step 4: Simplify right side
    191,779x = 163,035,058,176
  5. Step 5: Solve for x
    x = 163,035,058,176/191,779
  6. Step 6: Final answer
    x = 850,119.45

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.