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Finding the Fourth Proportional to 540,910.50, 811,419.81 and 185,877.78

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Solution

The fourth proportional to 540,910.50, 811,419.81 and 185,877.78 is: 278,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,910.50 : 811,419.81 = 185,877.78 : x
  2. Step 2: Convert to fraction form
    540,910.50/811,419.81 = 185,877.78/x
  3. Step 3: Cross multiply
    540,910.50x = 811,419.81 × 185,877.78
  4. Step 4: Simplify right side
    540,910.50x = 150,824,912,930.82
  5. Step 5: Solve for x
    x = 150,824,912,930.82/540,910.50
  6. Step 6: Final answer
    x = 278,835.25

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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.