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Finding the Fourth Proportional to 470,617.58, 649,451.48 and 255,757.16

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Solution

The fourth proportional to 470,617.58, 649,451.48 and 255,757.16 is: 352,944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,617.58 : 649,451.48 = 255,757.16 : x
  2. Step 2: Convert to fraction form
    470,617.58/649,451.48 = 255,757.16/x
  3. Step 3: Cross multiply
    470,617.58x = 649,451.48 × 255,757.16
  4. Step 4: Simplify right side
    470,617.58x = 166,101,866,082.60
  5. Step 5: Solve for x
    x = 166,101,866,082.60/470,617.58
  6. Step 6: Final answer
    x = 352,944.46

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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.