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Finding the Fourth Proportional to 407,523.40, 611,576.70 and 171,035.80

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Solution

The fourth proportional to 407,523.40, 611,576.70 and 171,035.80 is: 256,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,523.40 : 611,576.70 = 171,035.80 : x
  2. Step 2: Convert to fraction form
    407,523.40/611,576.70 = 171,035.80/x
  3. Step 3: Cross multiply
    407,523.40x = 611,576.70 × 171,035.80
  4. Step 4: Simplify right side
    407,523.40x = 104,601,510,145.86
  5. Step 5: Solve for x
    x = 104,601,510,145.86/407,523.40
  6. Step 6: Final answer
    x = 256,676.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.