Home / 382,965.32-528,148.08-239,738.40

Finding the Fourth Proportional to 382,965.32, 528,148.08 and 239,738.40

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Solution

The fourth proportional to 382,965.32, 528,148.08 and 239,738.40 is: 330,623.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,965.32 : 528,148.08 = 239,738.40 : x
  2. Step 2: Convert to fraction form
    382,965.32/528,148.08 = 239,738.40/x
  3. Step 3: Cross multiply
    382,965.32x = 528,148.08 × 239,738.40
  4. Step 4: Simplify right side
    382,965.32x = 126,617,375,662.27
  5. Step 5: Solve for x
    x = 126,617,375,662.27/382,965.32
  6. Step 6: Final answer
    x = 330,623.61

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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.