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Finding the Fourth Proportional to 1,976,772.64, 2,965,530.12 and 897,360.96

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Solution

The fourth proportional to 1,976,772.64, 2,965,530.12 and 897,360.96 is: 1,346,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,772.64 : 2,965,530.12 = 897,360.96 : x
  2. Step 2: Convert to fraction form
    1,976,772.64/2,965,530.12 = 897,360.96/x
  3. Step 3: Cross multiply
    1,976,772.64x = 2,965,530.12 × 897,360.96
  4. Step 4: Simplify right side
    1,976,772.64x = 2,661,150,955,392.12
  5. Step 5: Solve for x
    x = 2,661,150,955,392.12/1,976,772.64
  6. Step 6: Final answer
    x = 1,346,209.93

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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.