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Finding the Fourth Proportional to 470,633.94, 649,474.56 and 255,774.06

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Solution

The fourth proportional to 470,633.94, 649,474.56 and 255,774.06 is: 352,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,633.94 : 649,474.56 = 255,774.06 : x
  2. Step 2: Convert to fraction form
    470,633.94/649,474.56 = 255,774.06/x
  3. Step 3: Cross multiply
    470,633.94x = 649,474.56 × 255,774.06
  4. Step 4: Simplify right side
    470,633.94x = 166,118,745,077.91
  5. Step 5: Solve for x
    x = 166,118,745,077.91/470,633.94
  6. Step 6: Final answer
    x = 352,968.05

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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.