Home / 381,827.28-526,928.16-209,752.50

Finding the Fourth Proportional to 381,827.28, 526,928.16 and 209,752.50

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Solution

The fourth proportional to 381,827.28, 526,928.16 and 209,752.50 is: 289,462.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,827.28 : 526,928.16 = 209,752.50 : x
  2. Step 2: Convert to fraction form
    381,827.28/526,928.16 = 209,752.50/x
  3. Step 3: Cross multiply
    381,827.28x = 526,928.16 × 209,752.50
  4. Step 4: Simplify right side
    381,827.28x = 110,524,498,880.40
  5. Step 5: Solve for x
    x = 110,524,498,880.40/381,827.28
  6. Step 6: Final answer
    x = 289,462.03

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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.