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Finding the Fourth Proportional to 666,274.50, 919,458.81 and 364,474.98

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Solution

The fourth proportional to 666,274.50, 919,458.81 and 364,474.98 is: 502,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,274.50 : 919,458.81 = 364,474.98 : x
  2. Step 2: Convert to fraction form
    666,274.50/919,458.81 = 364,474.98/x
  3. Step 3: Cross multiply
    666,274.50x = 919,458.81 × 364,474.98
  4. Step 4: Simplify right side
    666,274.50x = 335,119,731,385.57
  5. Step 5: Solve for x
    x = 335,119,731,385.57/666,274.50
  6. Step 6: Final answer
    x = 502,975.47

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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.