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Finding the Third Proportional to 668,977.50 and 953,638.50

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Solution

The third proportional to 668,977.50 and 953,638.50 is: 1,359,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,977.50 : 953,638.50 = 953,638.50 : x
  2. Step 2: Convert to fraction form
    668,977.50/953,638.50 = 953,638.50/x
  3. Step 3: Cross multiply
    668,977.50x = 953,638.50 × 953,638.50
  4. Step 4: Simplify right side
    668,977.50x = 909,426,388,682.25
  5. Step 5: Solve for x
    x = 909,426,388,682.25/668,977.50
  6. Step 6: Final answer
    x = 1,359,427.47

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.