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Finding the Fourth Proportional to 666,323.90, 919,548.72 and 364,517.90

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Solution

The fourth proportional to 666,323.90, 919,548.72 and 364,517.90 is: 503,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,323.90 : 919,548.72 = 364,517.90 : x
  2. Step 2: Convert to fraction form
    666,323.90/919,548.72 = 364,517.90/x
  3. Step 3: Cross multiply
    666,323.90x = 919,548.72 × 364,517.90
  4. Step 4: Simplify right side
    666,323.90x = 335,191,968,362.09
  5. Step 5: Solve for x
    x = 335,191,968,362.09/666,323.90
  6. Step 6: Final answer
    x = 503,046.59

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1.5x scale

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.