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Finding the Fourth Proportional to 353,430.60, 530,145.90 and 283,446.60

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Solution

The fourth proportional to 353,430.60, 530,145.90 and 283,446.60 is: 425,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,430.60 : 530,145.90 = 283,446.60 : x
  2. Step 2: Convert to fraction form
    353,430.60/530,145.90 = 283,446.60/x
  3. Step 3: Cross multiply
    353,430.60x = 530,145.90 × 283,446.60
  4. Step 4: Simplify right side
    353,430.60x = 150,268,052,858.94
  5. Step 5: Solve for x
    x = 150,268,052,858.94/353,430.60
  6. Step 6: Final answer
    x = 425,169.90

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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.