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Finding the Fourth Proportional to 444,590.40, 666,951.20 and 129,006.28

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Solution

The fourth proportional to 444,590.40, 666,951.20 and 129,006.28 is: 193,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,590.40 : 666,951.20 = 129,006.28 : x
  2. Step 2: Convert to fraction form
    444,590.40/666,951.20 = 129,006.28/x
  3. Step 3: Cross multiply
    444,590.40x = 666,951.20 × 129,006.28
  4. Step 4: Simplify right side
    444,590.40x = 86,040,893,253.54
  5. Step 5: Solve for x
    x = 86,040,893,253.54/444,590.40
  6. Step 6: Final answer
    x = 193,528.46

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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.