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Finding the Fourth Proportional to 411,391.72, 567,773.12 and 230,113.72

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Solution

The fourth proportional to 411,391.72, 567,773.12 and 230,113.72 is: 317,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,391.72 : 567,773.12 = 230,113.72 : x
  2. Step 2: Convert to fraction form
    411,391.72/567,773.12 = 230,113.72/x
  3. Step 3: Cross multiply
    411,391.72x = 567,773.12 × 230,113.72
  4. Step 4: Simplify right side
    411,391.72x = 130,652,384,759.21
  5. Step 5: Solve for x
    x = 130,652,384,759.21/411,391.72
  6. Step 6: Final answer
    x = 317,586.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.