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Finding the Fourth Proportional to 576,119.40, 864,063.90 and 276,599.40

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Solution

The fourth proportional to 576,119.40, 864,063.90 and 276,599.40 is: 414,843.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,119.40 : 864,063.90 = 276,599.40 : x
  2. Step 2: Convert to fraction form
    576,119.40/864,063.90 = 276,599.40/x
  3. Step 3: Cross multiply
    576,119.40x = 864,063.90 × 276,599.40
  4. Step 4: Simplify right side
    576,119.40x = 238,999,556,301.66
  5. Step 5: Solve for x
    x = 238,999,556,301.66/576,119.40
  6. Step 6: Final answer
    x = 414,843.79

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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.