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Finding the Third Proportional to 184,356 and 390,312

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Solution

The third proportional to 184,356 and 390,312 is: 826,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,356 : 390,312 = 390,312 : x
  2. Step 2: Convert to fraction form
    184,356/390,312 = 390,312/x
  3. Step 3: Cross multiply
    184,356x = 390,312 × 390,312
  4. Step 4: Simplify right side
    184,356x = 152,343,457,344
  5. Step 5: Solve for x
    x = 152,343,457,344/184,356
  6. Step 6: Final answer
    x = 826,354.76

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.