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Finding the Fourth Proportional to 475,449.94, 656,193.18 and 303,442.12

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Solution

The fourth proportional to 475,449.94, 656,193.18 and 303,442.12 is: 418,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,449.94 : 656,193.18 = 303,442.12 : x
  2. Step 2: Convert to fraction form
    475,449.94/656,193.18 = 303,442.12/x
  3. Step 3: Cross multiply
    475,449.94x = 656,193.18 × 303,442.12
  4. Step 4: Simplify right side
    475,449.94x = 199,116,649,668.74
  5. Step 5: Solve for x
    x = 199,116,649,668.74/475,449.94
  6. Step 6: Final answer
    x = 418,796.25

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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.