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Finding the Fourth Proportional to 360,531.49, 540,415.87 and 135,794.69

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Solution

The fourth proportional to 360,531.49, 540,415.87 and 135,794.69 is: 203,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,531.49 : 540,415.87 = 135,794.69 : x
  2. Step 2: Convert to fraction form
    360,531.49/540,415.87 = 135,794.69/x
  3. Step 3: Cross multiply
    360,531.49x = 540,415.87 × 135,794.69
  4. Step 4: Simplify right side
    360,531.49x = 73,385,603,175.14
  5. Step 5: Solve for x
    x = 73,385,603,175.14/360,531.49
  6. Step 6: Final answer
    x = 203,548.39

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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.