Home / 383,228.16-528,814.48-222,133.76

Finding the Fourth Proportional to 383,228.16, 528,814.48 and 222,133.76

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Solution

The fourth proportional to 383,228.16, 528,814.48 and 222,133.76 is: 306,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,228.16 : 528,814.48 = 222,133.76 : x
  2. Step 2: Convert to fraction form
    383,228.16/528,814.48 = 222,133.76/x
  3. Step 3: Cross multiply
    383,228.16x = 528,814.48 × 222,133.76
  4. Step 4: Simplify right side
    383,228.16x = 117,467,548,784.85
  5. Step 5: Solve for x
    x = 117,467,548,784.85/383,228.16
  6. Step 6: Final answer
    x = 306,521.18

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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.