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Finding the Fourth Proportional to 530,706.61, 796,370.96 and 380,785.33

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Solution

The fourth proportional to 530,706.61, 796,370.96 and 380,785.33 is: 571,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,706.61 : 796,370.96 = 380,785.33 : x
  2. Step 2: Convert to fraction form
    530,706.61/796,370.96 = 380,785.33/x
  3. Step 3: Cross multiply
    530,706.61x = 796,370.96 × 380,785.33
  4. Step 4: Simplify right side
    530,706.61x = 303,246,378,806.02
  5. Step 5: Solve for x
    x = 303,246,378,806.02/530,706.61
  6. Step 6: Final answer
    x = 571,401.17

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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.