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Finding the Fourth Proportional to 312,552.84, 431,216.82 and 176,566.92

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Solution

The fourth proportional to 312,552.84, 431,216.82 and 176,566.92 is: 243,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,552.84 : 431,216.82 = 176,566.92 : x
  2. Step 2: Convert to fraction form
    312,552.84/431,216.82 = 176,566.92/x
  3. Step 3: Cross multiply
    312,552.84x = 431,216.82 × 176,566.92
  4. Step 4: Simplify right side
    312,552.84x = 76,138,625,759.59
  5. Step 5: Solve for x
    x = 76,138,625,759.59/312,552.84
  6. Step 6: Final answer
    x = 243,602.41

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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.