Home / 939,768.40-1,409,652.60-541,637.20

Finding the Fourth Proportional to 939,768.40, 1,409,652.60 and 541,637.20

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Solution

The fourth proportional to 939,768.40, 1,409,652.60 and 541,637.20 is: 812,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,768.40 : 1,409,652.60 = 541,637.20 : x
  2. Step 2: Convert to fraction form
    939,768.40/1,409,652.60 = 541,637.20/x
  3. Step 3: Cross multiply
    939,768.40x = 1,409,652.60 × 541,637.20
  4. Step 4: Simplify right side
    939,768.40x = 763,520,287,236.72
  5. Step 5: Solve for x
    x = 763,520,287,236.72/939,768.40
  6. Step 6: Final answer
    x = 812,455.80

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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.