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Finding the Fourth Proportional to 359,955.84, 496,470.56 and 319,167.84

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Solution

The fourth proportional to 359,955.84, 496,470.56 and 319,167.84 is: 440,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,955.84 : 496,470.56 = 319,167.84 : x
  2. Step 2: Convert to fraction form
    359,955.84/496,470.56 = 319,167.84/x
  3. Step 3: Cross multiply
    359,955.84x = 496,470.56 × 319,167.84
  4. Step 4: Simplify right side
    359,955.84x = 158,457,436,258.79
  5. Step 5: Solve for x
    x = 158,457,436,258.79/359,955.84
  6. Step 6: Final answer
    x = 440,213.54

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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.