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Finding the Fourth Proportional to 354,707.30, 530,908.41 and 194,379.23

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Solution

The fourth proportional to 354,707.30, 530,908.41 and 194,379.23 is: 290,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,707.30 : 530,908.41 = 194,379.23 : x
  2. Step 2: Convert to fraction form
    354,707.30/530,908.41 = 194,379.23/x
  3. Step 3: Cross multiply
    354,707.30x = 530,908.41 × 194,379.23
  4. Step 4: Simplify right side
    354,707.30x = 103,197,567,936.32
  5. Step 5: Solve for x
    x = 103,197,567,936.32/354,707.30
  6. Step 6: Final answer
    x = 290,937.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.