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Finding the Fourth Proportional to 411,169.77, 616,812.63 and 126,883.46

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Solution

The fourth proportional to 411,169.77, 616,812.63 and 126,883.46 is: 190,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,169.77 : 616,812.63 = 126,883.46 : x
  2. Step 2: Convert to fraction form
    411,169.77/616,812.63 = 126,883.46/x
  3. Step 3: Cross multiply
    411,169.77x = 616,812.63 × 126,883.46
  4. Step 4: Simplify right side
    411,169.77x = 78,263,320,666.10
  5. Step 5: Solve for x
    x = 78,263,320,666.10/411,169.77
  6. Step 6: Final answer
    x = 190,343.08

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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.