Home / 656,380.80-905,204.16-430,151.04

Finding the Fourth Proportional to 656,380.80, 905,204.16 and 430,151.04

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Solution

The fourth proportional to 656,380.80, 905,204.16 and 430,151.04 is: 593,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,380.80 : 905,204.16 = 430,151.04 : x
  2. Step 2: Convert to fraction form
    656,380.80/905,204.16 = 430,151.04/x
  3. Step 3: Cross multiply
    656,380.80x = 905,204.16 × 430,151.04
  4. Step 4: Simplify right side
    656,380.80x = 389,374,510,836.33
  5. Step 5: Solve for x
    x = 389,374,510,836.33/656,380.80
  6. Step 6: Final answer
    x = 593,214.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.