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Finding the Fourth Proportional to 352,560, 486,532.80 and 193,584

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Solution

The fourth proportional to 352,560, 486,532.80 and 193,584 is: 267,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,560 : 486,532.80 = 193,584 : x
  2. Step 2: Convert to fraction form
    352,560/486,532.80 = 193,584/x
  3. Step 3: Cross multiply
    352,560x = 486,532.80 × 193,584
  4. Step 4: Simplify right side
    352,560x = 94,184,965,555.20
  5. Step 5: Solve for x
    x = 94,184,965,555.20/352,560
  6. Step 6: Final answer
    x = 267,145.92

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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.