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Finding the Fourth Proportional to 416,042.60, 624,063.90 and 135,588.20

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Solution

The fourth proportional to 416,042.60, 624,063.90 and 135,588.20 is: 203,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,042.60 : 624,063.90 = 135,588.20 : x
  2. Step 2: Convert to fraction form
    416,042.60/624,063.90 = 135,588.20/x
  3. Step 3: Cross multiply
    416,042.60x = 624,063.90 × 135,588.20
  4. Step 4: Simplify right side
    416,042.60x = 84,615,700,885.98
  5. Step 5: Solve for x
    x = 84,615,700,885.98/416,042.60
  6. Step 6: Final answer
    x = 203,382.30

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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.