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Finding the Fourth Proportional to 369,216.72, 509,519.07 and 199,450.84

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Solution

The fourth proportional to 369,216.72, 509,519.07 and 199,450.84 is: 275,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,216.72 : 509,519.07 = 199,450.84 : x
  2. Step 2: Convert to fraction form
    369,216.72/509,519.07 = 199,450.84/x
  3. Step 3: Cross multiply
    369,216.72x = 509,519.07 × 199,450.84
  4. Step 4: Simplify right side
    369,216.72x = 101,624,006,507.52
  5. Step 5: Solve for x
    x = 101,624,006,507.52/369,216.72
  6. Step 6: Final answer
    x = 275,242.16

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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.