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Finding the Fourth Proportional to 383,633.40, 529,641.18 and 341,074.20

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Solution

The fourth proportional to 383,633.40, 529,641.18 and 341,074.20 is: 470,884.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,633.40 : 529,641.18 = 341,074.20 : x
  2. Step 2: Convert to fraction form
    383,633.40/529,641.18 = 341,074.20/x
  3. Step 3: Cross multiply
    383,633.40x = 529,641.18 × 341,074.20
  4. Step 4: Simplify right side
    383,633.40x = 180,646,941,755.56
  5. Step 5: Solve for x
    x = 180,646,941,755.56/383,633.40
  6. Step 6: Final answer
    x = 470,884.29

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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.