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Finding the Fourth Proportional to 319,188.12, 440,469.18 and 175,945.56

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Solution

The fourth proportional to 319,188.12, 440,469.18 and 175,945.56 is: 242,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,188.12 : 440,469.18 = 175,945.56 : x
  2. Step 2: Convert to fraction form
    319,188.12/440,469.18 = 175,945.56/x
  3. Step 3: Cross multiply
    319,188.12x = 440,469.18 × 175,945.56
  4. Step 4: Simplify right side
    319,188.12x = 77,498,596,537.84
  5. Step 5: Solve for x
    x = 77,498,596,537.84/319,188.12
  6. Step 6: Final answer
    x = 242,799.13

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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.