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Finding the Fourth Proportional to 582,809.55, 873,992.85 and 278,891.74

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Solution

The fourth proportional to 582,809.55, 873,992.85 and 278,891.74 is: 418,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,809.55 : 873,992.85 = 278,891.74 : x
  2. Step 2: Convert to fraction form
    582,809.55/873,992.85 = 278,891.74/x
  3. Step 3: Cross multiply
    582,809.55x = 873,992.85 × 278,891.74
  4. Step 4: Simplify right side
    582,809.55x = 243,749,386,684.06
  5. Step 5: Solve for x
    x = 243,749,386,684.06/582,809.55
  6. Step 6: Final answer
    x = 418,231.63

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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.