Home / 444,048.20-666,072.30-128,515.40

Finding the Fourth Proportional to 444,048.20, 666,072.30 and 128,515.40

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Solution

The fourth proportional to 444,048.20, 666,072.30 and 128,515.40 is: 192,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,048.20 : 666,072.30 = 128,515.40 : x
  2. Step 2: Convert to fraction form
    444,048.20/666,072.30 = 128,515.40/x
  3. Step 3: Cross multiply
    444,048.20x = 666,072.30 × 128,515.40
  4. Step 4: Simplify right side
    444,048.20x = 85,600,548,063.42
  5. Step 5: Solve for x
    x = 85,600,548,063.42/444,048.20
  6. Step 6: Final answer
    x = 192,773.10

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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.