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Finding the Third Proportional to 637,308 and 865,971

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Solution

The third proportional to 637,308 and 865,971 is: 1,176,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,308 : 865,971 = 865,971 : x
  2. Step 2: Convert to fraction form
    637,308/865,971 = 865,971/x
  3. Step 3: Cross multiply
    637,308x = 865,971 × 865,971
  4. Step 4: Simplify right side
    637,308x = 749,905,772,841
  5. Step 5: Solve for x
    x = 749,905,772,841/637,308
  6. Step 6: Final answer
    x = 1,176,677.17

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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.