Home / 384,120.38-530,086.56-214,354.46

Finding the Fourth Proportional to 384,120.38, 530,086.56 and 214,354.46

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Solution

The fourth proportional to 384,120.38, 530,086.56 and 214,354.46 is: 295,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,120.38 : 530,086.56 = 214,354.46 : x
  2. Step 2: Convert to fraction form
    384,120.38/530,086.56 = 214,354.46/x
  3. Step 3: Cross multiply
    384,120.38x = 530,086.56 × 214,354.46
  4. Step 4: Simplify right side
    384,120.38x = 113,626,418,322.06
  5. Step 5: Solve for x
    x = 113,626,418,322.06/384,120.38
  6. Step 6: Final answer
    x = 295,809.40

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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.