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Finding the Fourth Proportional to 1,700,512.80, 2,550,769.20 and 1,169,671.20

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Solution

The fourth proportional to 1,700,512.80, 2,550,769.20 and 1,169,671.20 is: 1,754,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700,512.80 : 2,550,769.20 = 1,169,671.20 : x
  2. Step 2: Convert to fraction form
    1,700,512.80/2,550,769.20 = 1,169,671.20/x
  3. Step 3: Cross multiply
    1,700,512.80x = 2,550,769.20 × 1,169,671.20
  4. Step 4: Simplify right side
    1,700,512.80x = 2,983,561,271,087.04
  5. Step 5: Solve for x
    x = 2,983,561,271,087.04/1,700,512.80
  6. Step 6: Final answer
    x = 1,754,506.80

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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.