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Finding the Fourth Proportional to 399,366.64, 598,849.64 and 133,033.52

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Solution

The fourth proportional to 399,366.64, 598,849.64 and 133,033.52 is: 199,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,366.64 : 598,849.64 = 133,033.52 : x
  2. Step 2: Convert to fraction form
    399,366.64/598,849.64 = 133,033.52/x
  3. Step 3: Cross multiply
    399,366.64x = 598,849.64 × 133,033.52
  4. Step 4: Simplify right side
    399,366.64x = 79,667,075,559.93
  5. Step 5: Solve for x
    x = 79,667,075,559.93/399,366.64
  6. Step 6: Final answer
    x = 199,483.55

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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.