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Finding the Fourth Proportional to 308,403.84, 425,548.96 and 179,370.88

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Solution

The fourth proportional to 308,403.84, 425,548.96 and 179,370.88 is: 247,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,403.84 : 425,548.96 = 179,370.88 : x
  2. Step 2: Convert to fraction form
    308,403.84/425,548.96 = 179,370.88/x
  3. Step 3: Cross multiply
    308,403.84x = 425,548.96 × 179,370.88
  4. Step 4: Simplify right side
    308,403.84x = 76,331,091,438.28
  5. Step 5: Solve for x
    x = 76,331,091,438.28/308,403.84
  6. Step 6: Final answer
    x = 247,503.70

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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.