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Finding the Fourth Proportional to 383,387.99, 529,165.51 and 238,303.22

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Solution

The fourth proportional to 383,387.99, 529,165.51 and 238,303.22 is: 328,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,387.99 : 529,165.51 = 238,303.22 : x
  2. Step 2: Convert to fraction form
    383,387.99/529,165.51 = 238,303.22/x
  3. Step 3: Cross multiply
    383,387.99x = 529,165.51 × 238,303.22
  4. Step 4: Simplify right side
    383,387.99x = 126,101,841,704.36
  5. Step 5: Solve for x
    x = 126,101,841,704.36/383,387.99
  6. Step 6: Final answer
    x = 328,914.43

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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.