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Finding the Fourth Proportional to 1,196,966, 1,651,813.08 and 660,422

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Solution

The fourth proportional to 1,196,966, 1,651,813.08 and 660,422 is: 911,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,966 : 1,651,813.08 = 660,422 : x
  2. Step 2: Convert to fraction form
    1,196,966/1,651,813.08 = 660,422/x
  3. Step 3: Cross multiply
    1,196,966x = 1,651,813.08 × 660,422
  4. Step 4: Simplify right side
    1,196,966x = 1,090,893,697,919.76
  5. Step 5: Solve for x
    x = 1,090,893,697,919.76/1,196,966
  6. Step 6: Final answer
    x = 911,382.36

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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.