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Finding the Fourth Proportional to 319,690.76, 441,176.90 and 176,450.90

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Solution

The fourth proportional to 319,690.76, 441,176.90 and 176,450.90 is: 243,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,690.76 : 441,176.90 = 176,450.90 : x
  2. Step 2: Convert to fraction form
    319,690.76/441,176.90 = 176,450.90/x
  3. Step 3: Cross multiply
    319,690.76x = 441,176.90 × 176,450.90
  4. Step 4: Simplify right side
    319,690.76x = 77,846,057,976.07
  5. Step 5: Solve for x
    x = 77,846,057,976.07/319,690.76
  6. Step 6: Final answer
    x = 243,504.25

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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.