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Finding the Fourth Proportional to 585,968.34, 879,040.27 and 212,078.82

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Solution

The fourth proportional to 585,968.34, 879,040.27 and 212,078.82 is: 318,149.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,968.34 : 879,040.27 = 212,078.82 : x
  2. Step 2: Convert to fraction form
    585,968.34/879,040.27 = 212,078.82/x
  3. Step 3: Cross multiply
    585,968.34x = 879,040.27 × 212,078.82
  4. Step 4: Simplify right side
    585,968.34x = 186,425,825,562.64
  5. Step 5: Solve for x
    x = 186,425,825,562.64/585,968.34
  6. Step 6: Final answer
    x = 318,149.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.