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Finding the Fourth Proportional to 309,443.40, 466,109.97 and 281,542.68

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Solution

The fourth proportional to 309,443.40, 466,109.97 and 281,542.68 is: 424,083.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,443.40 : 466,109.97 = 281,542.68 : x
  2. Step 2: Convert to fraction form
    309,443.40/466,109.97 = 281,542.68/x
  3. Step 3: Cross multiply
    309,443.40x = 466,109.97 × 281,542.68
  4. Step 4: Simplify right side
    309,443.40x = 131,229,850,128.52
  5. Step 5: Solve for x
    x = 131,229,850,128.52/309,443.40
  6. Step 6: Final answer
    x = 424,083.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.