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Finding the Fourth Proportional to 470,380.96, 649,130.25 and 255,525.22

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Solution

The fourth proportional to 470,380.96, 649,130.25 and 255,525.22 is: 352,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,380.96 : 649,130.25 = 255,525.22 : x
  2. Step 2: Convert to fraction form
    470,380.96/649,130.25 = 255,525.22/x
  3. Step 3: Cross multiply
    470,380.96x = 649,130.25 × 255,525.22
  4. Step 4: Simplify right side
    470,380.96x = 165,869,149,939.91
  5. Step 5: Solve for x
    x = 165,869,149,939.91/470,380.96
  6. Step 6: Final answer
    x = 352,627.26

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1.5x scale

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.