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Finding the Fourth Proportional to 682,551.78, 942,108.83 and 396,164.13

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Solution

The fourth proportional to 682,551.78, 942,108.83 and 396,164.13 is: 546,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,551.78 : 942,108.83 = 396,164.13 : x
  2. Step 2: Convert to fraction form
    682,551.78/942,108.83 = 396,164.13/x
  3. Step 3: Cross multiply
    682,551.78x = 942,108.83 × 396,164.13
  4. Step 4: Simplify right side
    682,551.78x = 373,229,725,002.27
  5. Step 5: Solve for x
    x = 373,229,725,002.27/682,551.78
  6. Step 6: Final answer
    x = 546,815.25

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1.5x scale

Why These Related Problems?

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