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Finding the Fourth Proportional to 383,341.44, 528,998.72 and 220,024.80

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Solution

The fourth proportional to 383,341.44, 528,998.72 and 220,024.80 is: 303,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,341.44 : 528,998.72 = 220,024.80 : x
  2. Step 2: Convert to fraction form
    383,341.44/528,998.72 = 220,024.80/x
  3. Step 3: Cross multiply
    383,341.44x = 528,998.72 × 220,024.80
  4. Step 4: Simplify right side
    383,341.44x = 116,392,837,568.26
  5. Step 5: Solve for x
    x = 116,392,837,568.26/383,341.44
  6. Step 6: Final answer
    x = 303,627.07

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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.