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Finding the Fourth Proportional to 419,209.34, 579,096.96 and 373,872.74

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Solution

The fourth proportional to 419,209.34, 579,096.96 and 373,872.74 is: 516,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,209.34 : 579,096.96 = 373,872.74 : x
  2. Step 2: Convert to fraction form
    419,209.34/579,096.96 = 373,872.74/x
  3. Step 3: Cross multiply
    419,209.34x = 579,096.96 × 373,872.74
  4. Step 4: Simplify right side
    419,209.34x = 216,508,567,160.87
  5. Step 5: Solve for x
    x = 216,508,567,160.87/419,209.34
  6. Step 6: Final answer
    x = 516,468.85

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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.