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Finding the Fourth Proportional to 313,418.94, 432,518.14 and 179,282.94

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Solution

The fourth proportional to 313,418.94, 432,518.14 and 179,282.94 is: 247,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,418.94 : 432,518.14 = 179,282.94 : x
  2. Step 2: Convert to fraction form
    313,418.94/432,518.14 = 179,282.94/x
  3. Step 3: Cross multiply
    313,418.94x = 432,518.14 × 179,282.94
  4. Step 4: Simplify right side
    313,418.94x = 77,543,121,764.82
  5. Step 5: Solve for x
    x = 77,543,121,764.82/313,418.94
  6. Step 6: Final answer
    x = 247,410.45

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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.