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Finding the Third Proportional to 291,666.75 and 392,301.75

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Solution

The third proportional to 291,666.75 and 392,301.75 is: 527,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,666.75 : 392,301.75 = 392,301.75 : x
  2. Step 2: Convert to fraction form
    291,666.75/392,301.75 = 392,301.75/x
  3. Step 3: Cross multiply
    291,666.75x = 392,301.75 × 392,301.75
  4. Step 4: Simplify right side
    291,666.75x = 153,900,663,053.06
  5. Step 5: Solve for x
    x = 153,900,663,053.06/291,666.75
  6. Step 6: Final answer
    x = 527,659.27

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.