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Finding the Fourth Proportional to 1,149,041, 1,723,592.22 and 390,881

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Solution

The fourth proportional to 1,149,041, 1,723,592.22 and 390,881 is: 586,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,041 : 1,723,592.22 = 390,881 : x
  2. Step 2: Convert to fraction form
    1,149,041/1,723,592.22 = 390,881/x
  3. Step 3: Cross multiply
    1,149,041x = 1,723,592.22 × 390,881
  4. Step 4: Simplify right side
    1,149,041x = 673,719,450,545.82
  5. Step 5: Solve for x
    x = 673,719,450,545.82/1,149,041
  6. Step 6: Final answer
    x = 586,331.95

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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.