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Finding the Fourth Proportional to 713,003.69, 1,068,785.44 and 446,950.69

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Solution

The fourth proportional to 713,003.69, 1,068,785.44 and 446,950.69 is: 669,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,003.69 : 1,068,785.44 = 446,950.69 : x
  2. Step 2: Convert to fraction form
    713,003.69/1,068,785.44 = 446,950.69/x
  3. Step 3: Cross multiply
    713,003.69x = 1,068,785.44 × 446,950.69
  4. Step 4: Simplify right side
    713,003.69x = 477,694,389,869.95
  5. Step 5: Solve for x
    x = 477,694,389,869.95/713,003.69
  6. Step 6: Final answer
    x = 669,974.64

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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.