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Finding the Third Proportional to 453,490 and 655,554

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Solution

The third proportional to 453,490 and 655,554 is: 947,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,490 : 655,554 = 655,554 : x
  2. Step 2: Convert to fraction form
    453,490/655,554 = 655,554/x
  3. Step 3: Cross multiply
    453,490x = 655,554 × 655,554
  4. Step 4: Simplify right side
    453,490x = 429,751,046,916
  5. Step 5: Solve for x
    x = 429,751,046,916/453,490
  6. Step 6: Final answer
    x = 947,652.75

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.