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Finding the Fourth Proportional to 544,521.39, 751,448.39 and 299,515.83

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Solution

The fourth proportional to 544,521.39, 751,448.39 and 299,515.83 is: 413,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,521.39 : 751,448.39 = 299,515.83 : x
  2. Step 2: Convert to fraction form
    544,521.39/751,448.39 = 299,515.83/x
  3. Step 3: Cross multiply
    544,521.39x = 751,448.39 × 299,515.83
  4. Step 4: Simplify right side
    544,521.39x = 225,070,686,735.44
  5. Step 5: Solve for x
    x = 225,070,686,735.44/544,521.39
  6. Step 6: Final answer
    x = 413,336.72

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.