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Finding the Fourth Proportional to 286,055.34, 394,832.94 and 178,560.64

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Solution

The fourth proportional to 286,055.34, 394,832.94 and 178,560.64 is: 246,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,055.34 : 394,832.94 = 178,560.64 : x
  2. Step 2: Convert to fraction form
    286,055.34/394,832.94 = 178,560.64/x
  3. Step 3: Cross multiply
    286,055.34x = 394,832.94 × 178,560.64
  4. Step 4: Simplify right side
    286,055.34x = 70,501,622,459.48
  5. Step 5: Solve for x
    x = 70,501,622,459.48/286,055.34
  6. Step 6: Final answer
    x = 246,461.48

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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.