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Finding the Fourth Proportional to 384,549.58, 530,675.30 and 212,467.01

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Solution

The fourth proportional to 384,549.58, 530,675.30 and 212,467.01 is: 293,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,549.58 : 530,675.30 = 212,467.01 : x
  2. Step 2: Convert to fraction form
    384,549.58/530,675.30 = 212,467.01/x
  3. Step 3: Cross multiply
    384,549.58x = 530,675.30 × 212,467.01
  4. Step 4: Simplify right side
    384,549.58x = 112,750,990,556.14
  5. Step 5: Solve for x
    x = 112,750,990,556.14/384,549.58
  6. Step 6: Final answer
    x = 293,202.74

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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.