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Finding the Fourth Proportional to 383,915.34, 575,626.96 and 159,430.73

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Solution

The fourth proportional to 383,915.34, 575,626.96 and 159,430.73 is: 239,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,915.34 : 575,626.96 = 159,430.73 : x
  2. Step 2: Convert to fraction form
    383,915.34/575,626.96 = 159,430.73/x
  3. Step 3: Cross multiply
    383,915.34x = 575,626.96 × 159,430.73
  4. Step 4: Simplify right side
    383,915.34x = 91,772,623,163.77
  5. Step 5: Solve for x
    x = 91,772,623,163.77/383,915.34
  6. Step 6: Final answer
    x = 239,043.91

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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.