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Finding the Fourth Proportional to 382,336.58, 573,146.58 and 129,440.54

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Solution

The fourth proportional to 382,336.58, 573,146.58 and 129,440.54 is: 194,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,336.58 : 573,146.58 = 129,440.54 : x
  2. Step 2: Convert to fraction form
    382,336.58/573,146.58 = 129,440.54/x
  3. Step 3: Cross multiply
    382,336.58x = 573,146.58 × 129,440.54
  4. Step 4: Simplify right side
    382,336.58x = 74,188,402,814.35
  5. Step 5: Solve for x
    x = 74,188,402,814.35/382,336.58
  6. Step 6: Final answer
    x = 194,039.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.