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Finding the Fourth Proportional to 530,813.71, 796,215.70 and 215,195.59

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Solution

The fourth proportional to 530,813.71, 796,215.70 and 215,195.59 is: 322,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,813.71 : 796,215.70 = 215,195.59 : x
  2. Step 2: Convert to fraction form
    530,813.71/796,215.70 = 215,195.59/x
  3. Step 3: Cross multiply
    530,813.71x = 796,215.70 × 215,195.59
  4. Step 4: Simplify right side
    530,813.71x = 171,342,107,328.76
  5. Step 5: Solve for x
    x = 171,342,107,328.76/530,813.71
  6. Step 6: Final answer
    x = 322,791.41

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1.5x scale

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.