Home / 383,932.10-530,018.12-238,784.67

Finding the Fourth Proportional to 383,932.10, 530,018.12 and 238,784.67

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Solution

The fourth proportional to 383,932.10, 530,018.12 and 238,784.67 is: 329,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,932.10 : 530,018.12 = 238,784.67 : x
  2. Step 2: Convert to fraction form
    383,932.10/530,018.12 = 238,784.67/x
  3. Step 3: Cross multiply
    383,932.10x = 530,018.12 × 238,784.67
  4. Step 4: Simplify right side
    383,932.10x = 126,560,201,878.22
  5. Step 5: Solve for x
    x = 126,560,201,878.22/383,932.10
  6. Step 6: Final answer
    x = 329,642.15

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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.