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Finding the Fourth Proportional to 470,550.26, 649,363.47 and 255,690.34

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Solution

The fourth proportional to 470,550.26, 649,363.47 and 255,690.34 is: 352,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,550.26 : 649,363.47 = 255,690.34 : x
  2. Step 2: Convert to fraction form
    470,550.26/649,363.47 = 255,690.34/x
  3. Step 3: Cross multiply
    470,550.26x = 649,363.47 × 255,690.34
  4. Step 4: Simplify right side
    470,550.26x = 166,035,963,845.63
  5. Step 5: Solve for x
    x = 166,035,963,845.63/470,550.26
  6. Step 6: Final answer
    x = 352,854.90

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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.