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Finding the Fourth Proportional to 415,757.40, 624,000.60 and 247,066.80

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Solution

The fourth proportional to 415,757.40, 624,000.60 and 247,066.80 is: 370,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,757.40 : 624,000.60 = 247,066.80 : x
  2. Step 2: Convert to fraction form
    415,757.40/624,000.60 = 247,066.80/x
  3. Step 3: Cross multiply
    415,757.40x = 624,000.60 × 247,066.80
  4. Step 4: Simplify right side
    415,757.40x = 154,169,831,440.08
  5. Step 5: Solve for x
    x = 154,169,831,440.08/415,757.40
  6. Step 6: Final answer
    x = 370,816.81

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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.