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Finding the Fourth Proportional to 633,953.45, 874,853.94 and 347,472.65

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Solution

The fourth proportional to 633,953.45, 874,853.94 and 347,472.65 is: 479,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,953.45 : 874,853.94 = 347,472.65 : x
  2. Step 2: Convert to fraction form
    633,953.45/874,853.94 = 347,472.65/x
  3. Step 3: Cross multiply
    633,953.45x = 874,853.94 × 347,472.65
  4. Step 4: Simplify right side
    633,953.45x = 303,987,810,783.11
  5. Step 5: Solve for x
    x = 303,987,810,783.11/633,953.45
  6. Step 6: Final answer
    x = 479,511.25

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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.