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Finding the Fourth Proportional to 382,236.08, 570,129.06 and 331,920.52

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Solution

The fourth proportional to 382,236.08, 570,129.06 and 331,920.52 is: 495,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,236.08 : 570,129.06 = 331,920.52 : x
  2. Step 2: Convert to fraction form
    382,236.08/570,129.06 = 331,920.52/x
  3. Step 3: Cross multiply
    382,236.08x = 570,129.06 × 331,920.52
  4. Step 4: Simplify right side
    382,236.08x = 189,237,534,062.31
  5. Step 5: Solve for x
    x = 189,237,534,062.31/382,236.08
  6. Step 6: Final answer
    x = 495,080.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.