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Finding the Third Proportional to 404,688 and 874,217

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Solution

The third proportional to 404,688 and 874,217 is: 1,888,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,688 : 874,217 = 874,217 : x
  2. Step 2: Convert to fraction form
    404,688/874,217 = 874,217/x
  3. Step 3: Cross multiply
    404,688x = 874,217 × 874,217
  4. Step 4: Simplify right side
    404,688x = 764,255,363,089
  5. Step 5: Solve for x
    x = 764,255,363,089/404,688
  6. Step 6: Final answer
    x = 1,888,505.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.