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Finding the Fourth Proportional to 281,574.35, 388,577.00 and 154,241.54

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Solution

The fourth proportional to 281,574.35, 388,577.00 and 154,241.54 is: 212,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,574.35 : 388,577.00 = 154,241.54 : x
  2. Step 2: Convert to fraction form
    281,574.35/388,577.00 = 154,241.54/x
  3. Step 3: Cross multiply
    281,574.35x = 388,577.00 × 154,241.54
  4. Step 4: Simplify right side
    281,574.35x = 59,934,713,331.30
  5. Step 5: Solve for x
    x = 59,934,713,331.30/281,574.35
  6. Step 6: Final answer
    x = 212,855.73

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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.