Home / 383,148.11-528,760.79-213,382.23

Finding the Fourth Proportional to 383,148.11, 528,760.79 and 213,382.23

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Solution

The fourth proportional to 383,148.11, 528,760.79 and 213,382.23 is: 294,476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,148.11 : 528,760.79 = 213,382.23 : x
  2. Step 2: Convert to fraction form
    383,148.11/528,760.79 = 213,382.23/x
  3. Step 3: Cross multiply
    383,148.11x = 528,760.79 × 213,382.23
  4. Step 4: Simplify right side
    383,148.11x = 112,828,155,439.85
  5. Step 5: Solve for x
    x = 112,828,155,439.85/383,148.11
  6. Step 6: Final answer
    x = 294,476.61

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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.