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Finding the Third Proportional to 572,287 and 885,730

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Solution

The third proportional to 572,287 and 885,730 is: 1,370,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,287 : 885,730 = 885,730 : x
  2. Step 2: Convert to fraction form
    572,287/885,730 = 885,730/x
  3. Step 3: Cross multiply
    572,287x = 885,730 × 885,730
  4. Step 4: Simplify right side
    572,287x = 784,517,632,900
  5. Step 5: Solve for x
    x = 784,517,632,900/572,287
  6. Step 6: Final answer
    x = 1,370,846.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.