Home / 383,931.10-530,016.74-238,783.67

Finding the Fourth Proportional to 383,931.10, 530,016.74 and 238,783.67

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Solution

The fourth proportional to 383,931.10, 530,016.74 and 238,783.67 is: 329,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,931.10 : 530,016.74 = 238,783.67 : x
  2. Step 2: Convert to fraction form
    383,931.10/530,016.74 = 238,783.67/x
  3. Step 3: Cross multiply
    383,931.10x = 530,016.74 × 238,783.67
  4. Step 4: Simplify right side
    383,931.10x = 126,559,345,030.56
  5. Step 5: Solve for x
    x = 126,559,345,030.56/383,931.10
  6. Step 6: Final answer
    x = 329,640.77

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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.