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Finding the Fourth Proportional to 313,452.13, 432,674.31 and 186,126.82

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Solution

The fourth proportional to 313,452.13, 432,674.31 and 186,126.82 is: 256,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,452.13 : 432,674.31 = 186,126.82 : x
  2. Step 2: Convert to fraction form
    313,452.13/432,674.31 = 186,126.82/x
  3. Step 3: Cross multiply
    313,452.13x = 432,674.31 × 186,126.82
  4. Step 4: Simplify right side
    313,452.13x = 80,532,293,415.99
  5. Step 5: Solve for x
    x = 80,532,293,415.99/313,452.13
  6. Step 6: Final answer
    x = 256,920.55

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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.