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Finding the Fourth Proportional to 866,563, 1,195,834.56 and 479,368.32

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Solution

The fourth proportional to 866,563, 1,195,834.56 and 479,368.32 is: 661,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,563 : 1,195,834.56 = 479,368.32 : x
  2. Step 2: Convert to fraction form
    866,563/1,195,834.56 = 479,368.32/x
  3. Step 3: Cross multiply
    866,563x = 1,195,834.56 × 479,368.32
  4. Step 4: Simplify right side
    866,563x = 573,245,204,025.14
  5. Step 5: Solve for x
    x = 573,245,204,025.14/866,563
  6. Step 6: Final answer
    x = 661,515.90

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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.