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Finding the Fourth Proportional to 339,370.56, 468,275.18 and 196,143.93

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Solution

The fourth proportional to 339,370.56, 468,275.18 and 196,143.93 is: 270,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,370.56 : 468,275.18 = 196,143.93 : x
  2. Step 2: Convert to fraction form
    339,370.56/468,275.18 = 196,143.93/x
  3. Step 3: Cross multiply
    339,370.56x = 468,275.18 × 196,143.93
  4. Step 4: Simplify right side
    339,370.56x = 91,849,333,145.94
  5. Step 5: Solve for x
    x = 91,849,333,145.94/339,370.56
  6. Step 6: Final answer
    x = 270,646.14

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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.