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Finding the Fourth Proportional to 319,084.20, 440,339.20 and 175,849.48

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Solution

The fourth proportional to 319,084.20, 440,339.20 and 175,849.48 is: 242,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,084.20 : 440,339.20 = 175,849.48 : x
  2. Step 2: Convert to fraction form
    319,084.20/440,339.20 = 175,849.48/x
  3. Step 3: Cross multiply
    319,084.20x = 440,339.20 × 175,849.48
  4. Step 4: Simplify right side
    319,084.20x = 77,433,419,343.62
  5. Step 5: Solve for x
    x = 77,433,419,343.62/319,084.20
  6. Step 6: Final answer
    x = 242,673.94

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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.