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Finding the Fourth Proportional to 620,096.40, 930,144.60 and 265,510.80

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Solution

The fourth proportional to 620,096.40, 930,144.60 and 265,510.80 is: 398,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,096.40 : 930,144.60 = 265,510.80 : x
  2. Step 2: Convert to fraction form
    620,096.40/930,144.60 = 265,510.80/x
  3. Step 3: Cross multiply
    620,096.40x = 930,144.60 × 265,510.80
  4. Step 4: Simplify right side
    620,096.40x = 246,963,436,861.68
  5. Step 5: Solve for x
    x = 246,963,436,861.68/620,096.40
  6. Step 6: Final answer
    x = 398,266.20

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Similar ratio
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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.