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Finding the Fourth Proportional to 354,161.56, 531,398.85 and 185,641.59

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Solution

The fourth proportional to 354,161.56, 531,398.85 and 185,641.59 is: 278,544.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,161.56 : 531,398.85 = 185,641.59 : x
  2. Step 2: Convert to fraction form
    354,161.56/531,398.85 = 185,641.59/x
  3. Step 3: Cross multiply
    354,161.56x = 531,398.85 × 185,641.59
  4. Step 4: Simplify right side
    354,161.56x = 98,649,727,438.17
  5. Step 5: Solve for x
    x = 98,649,727,438.17/354,161.56
  6. Step 6: Final answer
    x = 278,544.43

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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.