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Finding the Fourth Proportional to 319,188.52, 440,481.60 and 175,945.48

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Solution

The fourth proportional to 319,188.52, 440,481.60 and 175,945.48 is: 242,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,188.52 : 440,481.60 = 175,945.48 : x
  2. Step 2: Convert to fraction form
    319,188.52/440,481.60 = 175,945.48/x
  3. Step 3: Cross multiply
    319,188.52x = 440,481.60 × 175,945.48
  4. Step 4: Simplify right side
    319,188.52x = 77,500,746,543.17
  5. Step 5: Solve for x
    x = 77,500,746,543.17/319,188.52
  6. Step 6: Final answer
    x = 242,805.56

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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.