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Finding the Fourth Proportional to 444,306.40, 666,265.20 and 177,978.40

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Solution

The fourth proportional to 444,306.40, 666,265.20 and 177,978.40 is: 266,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,306.40 : 666,265.20 = 177,978.40 : x
  2. Step 2: Convert to fraction form
    444,306.40/666,265.20 = 177,978.40/x
  3. Step 3: Cross multiply
    444,306.40x = 666,265.20 × 177,978.40
  4. Step 4: Simplify right side
    444,306.40x = 118,580,814,271.68
  5. Step 5: Solve for x
    x = 118,580,814,271.68/444,306.40
  6. Step 6: Final answer
    x = 266,889.73

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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.