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Finding the Fourth Proportional to 671,163.57, 926,205.84 and 369,357.57

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Solution

The fourth proportional to 671,163.57, 926,205.84 and 369,357.57 is: 509,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,163.57 : 926,205.84 = 369,357.57 : x
  2. Step 2: Convert to fraction form
    671,163.57/926,205.84 = 369,357.57/x
  3. Step 3: Cross multiply
    671,163.57x = 926,205.84 × 369,357.57
  4. Step 4: Simplify right side
    671,163.57x = 342,101,138,382.21
  5. Step 5: Solve for x
    x = 342,101,138,382.21/671,163.57
  6. Step 6: Final answer
    x = 509,713.51

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Double scale
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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.