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Finding the Fourth Proportional to 470,446.43, 649,212.59 and 255,588.26

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Solution

The fourth proportional to 470,446.43, 649,212.59 and 255,588.26 is: 352,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,446.43 : 649,212.59 = 255,588.26 : x
  2. Step 2: Convert to fraction form
    470,446.43/649,212.59 = 255,588.26/x
  3. Step 3: Cross multiply
    470,446.43x = 649,212.59 × 255,588.26
  4. Step 4: Simplify right side
    470,446.43x = 165,931,113,641.10
  5. Step 5: Solve for x
    x = 165,931,113,641.10/470,446.43
  6. Step 6: Final answer
    x = 352,709.90

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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.