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Finding the Fourth Proportional to 1,205,578, 1,808,682.16 and 699,652.64

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Solution

The fourth proportional to 1,205,578, 1,808,682.16 and 699,652.64 is: 1,049,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,578 : 1,808,682.16 = 699,652.64 : x
  2. Step 2: Convert to fraction form
    1,205,578/1,808,682.16 = 699,652.64/x
  3. Step 3: Cross multiply
    1,205,578x = 1,808,682.16 × 699,652.64
  4. Step 4: Simplify right side
    1,205,578x = 1,265,449,248,164.90
  5. Step 5: Solve for x
    x = 1,265,449,248,164.90/1,205,578
  6. Step 6: Final answer
    x = 1,049,661.86

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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.