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Finding the Fourth Proportional to 411,600.80, 617,401.20 and 116,112.80

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Solution

The fourth proportional to 411,600.80, 617,401.20 and 116,112.80 is: 174,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,600.80 : 617,401.20 = 116,112.80 : x
  2. Step 2: Convert to fraction form
    411,600.80/617,401.20 = 116,112.80/x
  3. Step 3: Cross multiply
    411,600.80x = 617,401.20 × 116,112.80
  4. Step 4: Simplify right side
    411,600.80x = 71,688,182,055.36
  5. Step 5: Solve for x
    x = 71,688,182,055.36/411,600.80
  6. Step 6: Final answer
    x = 174,169.20

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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.