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Finding the Third Proportional to 291,681 and 476,286.75

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Solution

The third proportional to 291,681 and 476,286.75 is: 777,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,681 : 476,286.75 = 476,286.75 : x
  2. Step 2: Convert to fraction form
    291,681/476,286.75 = 476,286.75/x
  3. Step 3: Cross multiply
    291,681x = 476,286.75 × 476,286.75
  4. Step 4: Simplify right side
    291,681x = 226,849,068,225.56
  5. Step 5: Solve for x
    x = 226,849,068,225.56/291,681
  6. Step 6: Final answer
    x = 777,730.01

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.