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Finding the Fourth Proportional to 470,651.57, 649,503.47 and 255,792.19

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Solution

The fourth proportional to 470,651.57, 649,503.47 and 255,792.19 is: 352,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,651.57 : 649,503.47 = 255,792.19 : x
  2. Step 2: Convert to fraction form
    470,651.57/649,503.47 = 255,792.19/x
  3. Step 3: Cross multiply
    470,651.57x = 649,503.47 × 255,792.19
  4. Step 4: Simplify right side
    470,651.57x = 166,137,915,003.90
  5. Step 5: Solve for x
    x = 166,137,915,003.90/470,651.57
  6. Step 6: Final answer
    x = 352,995.56

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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.