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Finding the Fourth Proportional to 582,990.72, 873,728.64 and 262,907.52

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Solution

The fourth proportional to 582,990.72, 873,728.64 and 262,907.52 is: 394,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,990.72 : 873,728.64 = 262,907.52 : x
  2. Step 2: Convert to fraction form
    582,990.72/873,728.64 = 262,907.52/x
  3. Step 3: Cross multiply
    582,990.72x = 873,728.64 × 262,907.52
  4. Step 4: Simplify right side
    582,990.72x = 229,709,829,895.37
  5. Step 5: Solve for x
    x = 229,709,829,895.37/582,990.72
  6. Step 6: Final answer
    x = 394,019.70

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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.