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Finding the Fourth Proportional to 382,466.54, 527,804.36 and 212,700.66

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Solution

The fourth proportional to 382,466.54, 527,804.36 and 212,700.66 is: 293,527.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,466.54 : 527,804.36 = 212,700.66 : x
  2. Step 2: Convert to fraction form
    382,466.54/527,804.36 = 212,700.66/x
  3. Step 3: Cross multiply
    382,466.54x = 527,804.36 × 212,700.66
  4. Step 4: Simplify right side
    382,466.54x = 112,264,335,722.88
  5. Step 5: Solve for x
    x = 112,264,335,722.88/382,466.54
  6. Step 6: Final answer
    x = 293,527.21

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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.