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Finding the Fourth Proportional to 475,448.94, 656,191.80 and 303,441.12

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Solution

The fourth proportional to 475,448.94, 656,191.80 and 303,441.12 is: 418,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,448.94 : 656,191.80 = 303,441.12 : x
  2. Step 2: Convert to fraction form
    475,448.94/656,191.80 = 303,441.12/x
  3. Step 3: Cross multiply
    475,448.94x = 656,191.80 × 303,441.12
  4. Step 4: Simplify right side
    475,448.94x = 199,115,574,726.82
  5. Step 5: Solve for x
    x = 199,115,574,726.82/475,448.94
  6. Step 6: Final answer
    x = 418,794.87

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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.