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Finding the Third Proportional to 636,572 and 865,047

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Solution

The third proportional to 636,572 and 865,047 is: 1,175,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,572 : 865,047 = 865,047 : x
  2. Step 2: Convert to fraction form
    636,572/865,047 = 865,047/x
  3. Step 3: Cross multiply
    636,572x = 865,047 × 865,047
  4. Step 4: Simplify right side
    636,572x = 748,306,312,209
  5. Step 5: Solve for x
    x = 748,306,312,209/636,572
  6. Step 6: Final answer
    x = 1,175,525.02

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.