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Finding the Fourth Proportional to 1,746,293.45, 2,619,757.44 and 721,626.17

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Solution

The fourth proportional to 1,746,293.45, 2,619,757.44 and 721,626.17 is: 1,082,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,746,293.45 : 2,619,757.44 = 721,626.17 : x
  2. Step 2: Convert to fraction form
    1,746,293.45/2,619,757.44 = 721,626.17/x
  3. Step 3: Cross multiply
    1,746,293.45x = 2,619,757.44 × 721,626.17
  4. Step 4: Simplify right side
    1,746,293.45x = 1,890,485,514,657.42
  5. Step 5: Solve for x
    x = 1,890,485,514,657.42/1,746,293.45
  6. Step 6: Final answer
    x = 1,082,570.35

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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.