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Finding the Fourth Proportional to 479,328.36, 661,475.28 and 264,468.30

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Solution

The fourth proportional to 479,328.36, 661,475.28 and 264,468.30 is: 364,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,328.36 : 661,475.28 = 264,468.30 : x
  2. Step 2: Convert to fraction form
    479,328.36/661,475.28 = 264,468.30/x
  3. Step 3: Cross multiply
    479,328.36x = 661,475.28 × 264,468.30
  4. Step 4: Simplify right side
    479,328.36x = 174,939,242,793.62
  5. Step 5: Solve for x
    x = 174,939,242,793.62/479,328.36
  6. Step 6: Final answer
    x = 364,967.44

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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.