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Finding the Fourth Proportional to 388,576.71, 536,260.10 and 235,628.46

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Solution

The fourth proportional to 388,576.71, 536,260.10 and 235,628.46 is: 325,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,576.71 : 536,260.10 = 235,628.46 : x
  2. Step 2: Convert to fraction form
    388,576.71/536,260.10 = 235,628.46/x
  3. Step 3: Cross multiply
    388,576.71x = 536,260.10 × 235,628.46
  4. Step 4: Simplify right side
    388,576.71x = 126,358,140,344.30
  5. Step 5: Solve for x
    x = 126,358,140,344.30/388,576.71
  6. Step 6: Final answer
    x = 325,181.97

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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.