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Finding the Fourth Proportional to 474,984.21, 712,535.04 and 155,168.28

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Solution

The fourth proportional to 474,984.21, 712,535.04 and 155,168.28 is: 232,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,984.21 : 712,535.04 = 155,168.28 : x
  2. Step 2: Convert to fraction form
    474,984.21/712,535.04 = 155,168.28/x
  3. Step 3: Cross multiply
    474,984.21x = 712,535.04 × 155,168.28
  4. Step 4: Simplify right side
    474,984.21x = 110,562,836,596.53
  5. Step 5: Solve for x
    x = 110,562,836,596.53/474,984.21
  6. Step 6: Final answer
    x = 232,771.60

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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.