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Finding the Fourth Proportional to 469,237.05, 647,550.45 and 254,380.50

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Solution

The fourth proportional to 469,237.05, 647,550.45 and 254,380.50 is: 351,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,237.05 : 647,550.45 = 254,380.50 : x
  2. Step 2: Convert to fraction form
    469,237.05/647,550.45 = 254,380.50/x
  3. Step 3: Cross multiply
    469,237.05x = 647,550.45 × 254,380.50
  4. Step 4: Simplify right side
    469,237.05x = 164,724,207,246.23
  5. Step 5: Solve for x
    x = 164,724,207,246.23/469,237.05
  6. Step 6: Final answer
    x = 351,046.89

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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.