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Finding the Fourth Proportional to 492,598.70, 679,786.03 and 266,244.20

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Solution

The fourth proportional to 492,598.70, 679,786.03 and 266,244.20 is: 367,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,598.70 : 679,786.03 = 266,244.20 : x
  2. Step 2: Convert to fraction form
    492,598.70/679,786.03 = 266,244.20/x
  3. Step 3: Cross multiply
    492,598.70x = 679,786.03 × 266,244.20
  4. Step 4: Simplify right side
    492,598.70x = 180,989,089,760.80
  5. Step 5: Solve for x
    x = 180,989,089,760.80/492,598.70
  6. Step 6: Final answer
    x = 367,416.90

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1.5x scale

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.