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Finding the Fourth Proportional to 666,027.80, 997,073.40 and 441,641.60

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Solution

The fourth proportional to 666,027.80, 997,073.40 and 441,641.60 is: 661,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,027.80 : 997,073.40 = 441,641.60 : x
  2. Step 2: Convert to fraction form
    666,027.80/997,073.40 = 441,641.60/x
  3. Step 3: Cross multiply
    666,027.80x = 997,073.40 × 441,641.60
  4. Step 4: Simplify right side
    666,027.80x = 440,349,091,693.44
  5. Step 5: Solve for x
    x = 440,349,091,693.44/666,027.80
  6. Step 6: Final answer
    x = 661,157.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.