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Finding the Fourth Proportional to 286,017.12, 394,888.48 and 177,236.88

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Solution

The fourth proportional to 286,017.12, 394,888.48 and 177,236.88 is: 244,701.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,017.12 : 394,888.48 = 177,236.88 : x
  2. Step 2: Convert to fraction form
    286,017.12/394,888.48 = 177,236.88/x
  3. Step 3: Cross multiply
    286,017.12x = 394,888.48 × 177,236.88
  4. Step 4: Simplify right side
    286,017.12x = 69,988,802,143.14
  5. Step 5: Solve for x
    x = 69,988,802,143.14/286,017.12
  6. Step 6: Final answer
    x = 244,701.44

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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.