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Finding the Fourth Proportional to 433,905.60, 650,858.40 and 276,830.40

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Solution

The fourth proportional to 433,905.60, 650,858.40 and 276,830.40 is: 415,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,905.60 : 650,858.40 = 276,830.40 : x
  2. Step 2: Convert to fraction form
    433,905.60/650,858.40 = 276,830.40/x
  3. Step 3: Cross multiply
    433,905.60x = 650,858.40 × 276,830.40
  4. Step 4: Simplify right side
    433,905.60x = 180,177,391,215.36
  5. Step 5: Solve for x
    x = 180,177,391,215.36/433,905.60
  6. Step 6: Final answer
    x = 415,245.60

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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.