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Finding the Fourth Proportional to 407,671.04, 611,555.12 and 197,157.71

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Solution

The fourth proportional to 407,671.04, 611,555.12 and 197,157.71 is: 295,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,671.04 : 611,555.12 = 197,157.71 : x
  2. Step 2: Convert to fraction form
    407,671.04/611,555.12 = 197,157.71/x
  3. Step 3: Cross multiply
    407,671.04x = 611,555.12 × 197,157.71
  4. Step 4: Simplify right side
    407,671.04x = 120,572,806,997.98
  5. Step 5: Solve for x
    x = 120,572,806,997.98/407,671.04
  6. Step 6: Final answer
    x = 295,760.05

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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.