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Finding the Fourth Proportional to 470,479.41, 649,253.61 and 255,622.86

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Solution

The fourth proportional to 470,479.41, 649,253.61 and 255,622.86 is: 352,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,479.41 : 649,253.61 = 255,622.86 : x
  2. Step 2: Convert to fraction form
    470,479.41/649,253.61 = 255,622.86/x
  3. Step 3: Cross multiply
    470,479.41x = 649,253.61 × 255,622.86
  4. Step 4: Simplify right side
    470,479.41x = 165,964,064,653.53
  5. Step 5: Solve for x
    x = 165,964,064,653.53/470,479.41
  6. Step 6: Final answer
    x = 352,755.21

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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.