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Finding the Fourth Proportional to 444,012.80, 666,019.20 and 144,521.60

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Solution

The fourth proportional to 444,012.80, 666,019.20 and 144,521.60 is: 216,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,012.80 : 666,019.20 = 144,521.60 : x
  2. Step 2: Convert to fraction form
    444,012.80/666,019.20 = 144,521.60/x
  3. Step 3: Cross multiply
    444,012.80x = 666,019.20 × 144,521.60
  4. Step 4: Simplify right side
    444,012.80x = 96,254,160,414.72
  5. Step 5: Solve for x
    x = 96,254,160,414.72/444,012.80
  6. Step 6: Final answer
    x = 216,782.40

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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.