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Finding the Fourth Proportional to 383,410.52, 529,145.89 and 230,498.21

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Solution

The fourth proportional to 383,410.52, 529,145.89 and 230,498.21 is: 318,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,410.52 : 529,145.89 = 230,498.21 : x
  2. Step 2: Convert to fraction form
    383,410.52/529,145.89 = 230,498.21/x
  3. Step 3: Cross multiply
    383,410.52x = 529,145.89 × 230,498.21
  4. Step 4: Simplify right side
    383,410.52x = 121,967,181,220.48
  5. Step 5: Solve for x
    x = 121,967,181,220.48/383,410.52
  6. Step 6: Final answer
    x = 318,111.20

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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.