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Finding the Fourth Proportional to 582,516.44, 803,458.58 and 388,826.49

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Solution

The fourth proportional to 582,516.44, 803,458.58 and 388,826.49 is: 536,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,516.44 : 803,458.58 = 388,826.49 : x
  2. Step 2: Convert to fraction form
    582,516.44/803,458.58 = 388,826.49/x
  3. Step 3: Cross multiply
    582,516.44x = 803,458.58 × 388,826.49
  4. Step 4: Simplify right side
    582,516.44x = 312,405,980,040.07
  5. Step 5: Solve for x
    x = 312,405,980,040.07/582,516.44
  6. Step 6: Final answer
    x = 536,304.15

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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.