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Finding the Third Proportional to 184,416 and 278,319

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Solution

The third proportional to 184,416 and 278,319 is: 420,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,416 : 278,319 = 278,319 : x
  2. Step 2: Convert to fraction form
    184,416/278,319 = 278,319/x
  3. Step 3: Cross multiply
    184,416x = 278,319 × 278,319
  4. Step 4: Simplify right side
    184,416x = 77,461,465,761
  5. Step 5: Solve for x
    x = 77,461,465,761/184,416
  6. Step 6: Final answer
    x = 420,036.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.