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Finding the Fourth Proportional to 1,746,017.20, 2,619,803.40 and 798,900.40

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Solution

The fourth proportional to 1,746,017.20, 2,619,803.40 and 798,900.40 is: 1,198,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,746,017.20 : 2,619,803.40 = 798,900.40 : x
  2. Step 2: Convert to fraction form
    1,746,017.20/2,619,803.40 = 798,900.40/x
  3. Step 3: Cross multiply
    1,746,017.20x = 2,619,803.40 × 798,900.40
  4. Step 4: Simplify right side
    1,746,017.20x = 2,092,961,984,181.36
  5. Step 5: Solve for x
    x = 2,092,961,984,181.36/1,746,017.20
  6. Step 6: Final answer
    x = 1,198,706.40

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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.