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Finding the Fourth Proportional to 383,905.90, 575,858.85 and 197,281.90

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Solution

The fourth proportional to 383,905.90, 575,858.85 and 197,281.90 is: 295,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,905.90 : 575,858.85 = 197,281.90 : x
  2. Step 2: Convert to fraction form
    383,905.90/575,858.85 = 197,281.90/x
  3. Step 3: Cross multiply
    383,905.90x = 575,858.85 × 197,281.90
  4. Step 4: Simplify right side
    383,905.90x = 113,606,528,059.82
  5. Step 5: Solve for x
    x = 113,606,528,059.82/383,905.90
  6. Step 6: Final answer
    x = 295,922.85

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Similar ratio
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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.