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Finding the Fourth Proportional to 1,271,705.87, 1,754,933.85 and 698,733.74

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Solution

The fourth proportional to 1,271,705.87, 1,754,933.85 and 698,733.74 is: 964,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,705.87 : 1,754,933.85 = 698,733.74 : x
  2. Step 2: Convert to fraction form
    1,271,705.87/1,754,933.85 = 698,733.74/x
  3. Step 3: Cross multiply
    1,271,705.87x = 1,754,933.85 × 698,733.74
  4. Step 4: Simplify right side
    1,271,705.87x = 1,226,231,496,850.43
  5. Step 5: Solve for x
    x = 1,226,231,496,850.43/1,271,705.87
  6. Step 6: Final answer
    x = 964,241.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.