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Finding the Fourth Proportional to 666,023.98, 919,094.43 and 364,211.50

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Solution

The fourth proportional to 666,023.98, 919,094.43 and 364,211.50 is: 502,601.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,023.98 : 919,094.43 = 364,211.50 : x
  2. Step 2: Convert to fraction form
    666,023.98/919,094.43 = 364,211.50/x
  3. Step 3: Cross multiply
    666,023.98x = 919,094.43 × 364,211.50
  4. Step 4: Simplify right side
    666,023.98x = 334,744,760,991.95
  5. Step 5: Solve for x
    x = 334,744,760,991.95/666,023.98
  6. Step 6: Final answer
    x = 502,601.66

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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.