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Finding the Fourth Proportional to 373,278.70, 559,918.05 and 314,958.70

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Solution

The fourth proportional to 373,278.70, 559,918.05 and 314,958.70 is: 472,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,278.70 : 559,918.05 = 314,958.70 : x
  2. Step 2: Convert to fraction form
    373,278.70/559,918.05 = 314,958.70/x
  3. Step 3: Cross multiply
    373,278.70x = 559,918.05 × 314,958.70
  4. Step 4: Simplify right side
    373,278.70x = 176,351,061,134.54
  5. Step 5: Solve for x
    x = 176,351,061,134.54/373,278.70
  6. Step 6: Final answer
    x = 472,438.05

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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.