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Finding the Fourth Proportional to 300,305.04, 414,356.04 and 191,450.76

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Solution

The fourth proportional to 300,305.04, 414,356.04 and 191,450.76 is: 264,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,305.04 : 414,356.04 = 191,450.76 : x
  2. Step 2: Convert to fraction form
    300,305.04/414,356.04 = 191,450.76/x
  3. Step 3: Cross multiply
    300,305.04x = 414,356.04 × 191,450.76
  4. Step 4: Simplify right side
    300,305.04x = 79,328,778,768.59
  5. Step 5: Solve for x
    x = 79,328,778,768.59/300,305.04
  6. Step 6: Final answer
    x = 264,160.66

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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.