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Finding the Fourth Proportional to 470,626.08, 649,412.28 and 266,661.60

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Solution

The fourth proportional to 470,626.08, 649,412.28 and 266,661.60 is: 367,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,626.08 : 649,412.28 = 266,661.60 : x
  2. Step 2: Convert to fraction form
    470,626.08/649,412.28 = 266,661.60/x
  3. Step 3: Cross multiply
    470,626.08x = 649,412.28 × 266,661.60
  4. Step 4: Simplify right side
    470,626.08x = 173,173,317,644.45
  5. Step 5: Solve for x
    x = 173,173,317,644.45/470,626.08
  6. Step 6: Final answer
    x = 367,963.71

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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.