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Finding the Fourth Proportional to 470,379.36, 649,124.04 and 255,519.42

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Solution

The fourth proportional to 470,379.36, 649,124.04 and 255,519.42 is: 352,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,379.36 : 649,124.04 = 255,519.42 : x
  2. Step 2: Convert to fraction form
    470,379.36/649,124.04 = 255,519.42/x
  3. Step 3: Cross multiply
    470,379.36x = 649,124.04 × 255,519.42
  4. Step 4: Simplify right side
    470,379.36x = 165,863,798,208.86
  5. Step 5: Solve for x
    x = 165,863,798,208.86/470,379.36
  6. Step 6: Final answer
    x = 352,617.08

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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.