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Finding the Fourth Proportional to 3,579,308.90, 5,368,974.53 and 883,634.43

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Solution

The fourth proportional to 3,579,308.90, 5,368,974.53 and 883,634.43 is: 1,325,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579,308.90 : 5,368,974.53 = 883,634.43 : x
  2. Step 2: Convert to fraction form
    3,579,308.90/5,368,974.53 = 883,634.43/x
  3. Step 3: Cross multiply
    3,579,308.90x = 5,368,974.53 × 883,634.43
  4. Step 4: Simplify right side
    3,579,308.90x = 4,744,210,748,501.07
  5. Step 5: Solve for x
    x = 4,744,210,748,501.07/3,579,308.90
  6. Step 6: Final answer
    x = 1,325,454.41

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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.