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Finding the Fourth Proportional to 422,755.80, 583,407.78 and 241,491.72

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Solution

The fourth proportional to 422,755.80, 583,407.78 and 241,491.72 is: 333,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,755.80 : 583,407.78 = 241,491.72 : x
  2. Step 2: Convert to fraction form
    422,755.80/583,407.78 = 241,491.72/x
  3. Step 3: Cross multiply
    422,755.80x = 583,407.78 × 241,491.72
  4. Step 4: Simplify right side
    422,755.80x = 140,888,148,253.58
  5. Step 5: Solve for x
    x = 140,888,148,253.58/422,755.80
  6. Step 6: Final answer
    x = 333,261.30

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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.