Home / 383,867.52-529,724.88-211,785.36

Finding the Fourth Proportional to 383,867.52, 529,724.88 and 211,785.36

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Solution

The fourth proportional to 383,867.52, 529,724.88 and 211,785.36 is: 292,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,867.52 : 529,724.88 = 211,785.36 : x
  2. Step 2: Convert to fraction form
    383,867.52/529,724.88 = 211,785.36/x
  3. Step 3: Cross multiply
    383,867.52x = 529,724.88 × 211,785.36
  4. Step 4: Simplify right side
    383,867.52x = 112,187,974,411.76
  5. Step 5: Solve for x
    x = 112,187,974,411.76/383,867.52
  6. Step 6: Final answer
    x = 292,257.01

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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.