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Finding the Fourth Proportional to 633,967.06, 874,964.24 and 392,327.46

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Solution

The fourth proportional to 633,967.06, 874,964.24 and 392,327.46 is: 541,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,967.06 : 874,964.24 = 392,327.46 : x
  2. Step 2: Convert to fraction form
    633,967.06/874,964.24 = 392,327.46/x
  3. Step 3: Cross multiply
    633,967.06x = 874,964.24 × 392,327.46
  4. Step 4: Simplify right side
    633,967.06x = 343,272,497,870.03
  5. Step 5: Solve for x
    x = 343,272,497,870.03/633,967.06
  6. Step 6: Final answer
    x = 541,467.40

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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.