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Finding the Third Proportional to 553,419 and 846,186.75

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Solution

The third proportional to 553,419 and 846,186.75 is: 1,293,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,419 : 846,186.75 = 846,186.75 : x
  2. Step 2: Convert to fraction form
    553,419/846,186.75 = 846,186.75/x
  3. Step 3: Cross multiply
    553,419x = 846,186.75 × 846,186.75
  4. Step 4: Simplify right side
    553,419x = 716,032,015,875.56
  5. Step 5: Solve for x
    x = 716,032,015,875.56/553,419
  6. Step 6: Final answer
    x = 1,293,833.45

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.