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Finding the Fourth Proportional to 411,527.33, 617,350.13 and 127,240.05

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Solution

The fourth proportional to 411,527.33, 617,350.13 and 127,240.05 is: 190,878.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,527.33 : 617,350.13 = 127,240.05 : x
  2. Step 2: Convert to fraction form
    411,527.33/617,350.13 = 127,240.05/x
  3. Step 3: Cross multiply
    411,527.33x = 617,350.13 × 127,240.05
  4. Step 4: Simplify right side
    411,527.33x = 78,551,661,408.71
  5. Step 5: Solve for x
    x = 78,551,661,408.71/411,527.33
  6. Step 6: Final answer
    x = 190,878.36

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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.