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Finding the Fourth Proportional to 382,906.97, 528,574.98 and 272,596.71

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Solution

The fourth proportional to 382,906.97, 528,574.98 and 272,596.71 is: 376,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,906.97 : 528,574.98 = 272,596.71 : x
  2. Step 2: Convert to fraction form
    382,906.97/528,574.98 = 272,596.71/x
  3. Step 3: Cross multiply
    382,906.97x = 528,574.98 × 272,596.71
  4. Step 4: Simplify right side
    382,906.97x = 144,087,800,536.32
  5. Step 5: Solve for x
    x = 144,087,800,536.32/382,906.97
  6. Step 6: Final answer
    x = 376,299.76

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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.