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Finding the Fourth Proportional to 308,562.42, 425,803.05 and 179,501.21

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Solution

The fourth proportional to 308,562.42, 425,803.05 and 179,501.21 is: 247,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,562.42 : 425,803.05 = 179,501.21 : x
  2. Step 2: Convert to fraction form
    308,562.42/425,803.05 = 179,501.21/x
  3. Step 3: Cross multiply
    308,562.42x = 425,803.05 × 179,501.21
  4. Step 4: Simplify right side
    308,562.42x = 76,432,160,567.68
  5. Step 5: Solve for x
    x = 76,432,160,567.68/308,562.42
  6. Step 6: Final answer
    x = 247,704.05

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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.