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Finding the Fourth Proportional to 689,186, 951,137.48 and 387,382.48

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Solution

The fourth proportional to 689,186, 951,137.48 and 387,382.48 is: 534,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,186 : 951,137.48 = 387,382.48 : x
  2. Step 2: Convert to fraction form
    689,186/951,137.48 = 387,382.48/x
  3. Step 3: Cross multiply
    689,186x = 951,137.48 × 387,382.48
  4. Step 4: Simplify right side
    689,186x = 368,453,995,823.35
  5. Step 5: Solve for x
    x = 368,453,995,823.35/689,186
  6. Step 6: Final answer
    x = 534,622.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.