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Finding the Fourth Proportional to 303,967.13, 455,950.70 and 82,351.13

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Solution

The fourth proportional to 303,967.13, 455,950.70 and 82,351.13 is: 123,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,967.13 : 455,950.70 = 82,351.13 : x
  2. Step 2: Convert to fraction form
    303,967.13/455,950.70 = 82,351.13/x
  3. Step 3: Cross multiply
    303,967.13x = 455,950.70 × 82,351.13
  4. Step 4: Simplify right side
    303,967.13x = 37,548,055,369.29
  5. Step 5: Solve for x
    x = 37,548,055,369.29/303,967.13
  6. Step 6: Final answer
    x = 123,526.70

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1.5x scale

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.