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Finding the Fourth Proportional to 319,189.54, 440,472.72 and 175,949.55

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Solution

The fourth proportional to 319,189.54, 440,472.72 and 175,949.55 is: 242,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,189.54 : 440,472.72 = 175,949.55 : x
  2. Step 2: Convert to fraction form
    319,189.54/440,472.72 = 175,949.55/x
  3. Step 3: Cross multiply
    319,189.54x = 440,472.72 × 175,949.55
  4. Step 4: Simplify right side
    319,189.54x = 77,500,974,668.91
  5. Step 5: Solve for x
    x = 77,500,974,668.91/319,189.54
  6. Step 6: Final answer
    x = 242,805.50

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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.