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Finding the Fourth Proportional to 311,051.80, 466,577.70 and 305,867.80

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Solution

The fourth proportional to 311,051.80, 466,577.70 and 305,867.80 is: 458,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,051.80 : 466,577.70 = 305,867.80 : x
  2. Step 2: Convert to fraction form
    311,051.80/466,577.70 = 305,867.80/x
  3. Step 3: Cross multiply
    311,051.80x = 466,577.70 × 305,867.80
  4. Step 4: Simplify right side
    311,051.80x = 142,711,094,628.06
  5. Step 5: Solve for x
    x = 142,711,094,628.06/311,051.80
  6. Step 6: Final answer
    x = 458,801.70

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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.