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Finding the Fourth Proportional to 322,856.84, 445,548.66 and 188,798.60

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Solution

The fourth proportional to 322,856.84, 445,548.66 and 188,798.60 is: 260,545.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,856.84 : 445,548.66 = 188,798.60 : x
  2. Step 2: Convert to fraction form
    322,856.84/445,548.66 = 188,798.60/x
  3. Step 3: Cross multiply
    322,856.84x = 445,548.66 × 188,798.60
  4. Step 4: Simplify right side
    322,856.84x = 84,118,963,239.88
  5. Step 5: Solve for x
    x = 84,118,963,239.88/322,856.84
  6. Step 6: Final answer
    x = 260,545.71

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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.