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Finding the Fourth Proportional to 384,602.59, 530,740.41 and 212,517.82

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Solution

The fourth proportional to 384,602.59, 530,740.41 and 212,517.82 is: 293,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,602.59 : 530,740.41 = 212,517.82 : x
  2. Step 2: Convert to fraction form
    384,602.59/530,740.41 = 212,517.82/x
  3. Step 3: Cross multiply
    384,602.59x = 530,740.41 × 212,517.82
  4. Step 4: Simplify right side
    384,602.59x = 112,791,795,183.37
  5. Step 5: Solve for x
    x = 112,791,795,183.37/384,602.59
  6. Step 6: Final answer
    x = 293,268.42

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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.