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Finding the Fourth Proportional to 461,311.80, 691,967.70 and 367,999.80

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Solution

The fourth proportional to 461,311.80, 691,967.70 and 367,999.80 is: 551,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,311.80 : 691,967.70 = 367,999.80 : x
  2. Step 2: Convert to fraction form
    461,311.80/691,967.70 = 367,999.80/x
  3. Step 3: Cross multiply
    461,311.80x = 691,967.70 × 367,999.80
  4. Step 4: Simplify right side
    461,311.80x = 254,643,975,206.46
  5. Step 5: Solve for x
    x = 254,643,975,206.46/461,311.80
  6. Step 6: Final answer
    x = 551,999.70

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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.