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Finding the Fourth Proportional to 352,872.76, 486,966.40 and 191,729.12

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Solution

The fourth proportional to 352,872.76, 486,966.40 and 191,729.12 is: 264,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,872.76 : 486,966.40 = 191,729.12 : x
  2. Step 2: Convert to fraction form
    352,872.76/486,966.40 = 191,729.12/x
  3. Step 3: Cross multiply
    352,872.76x = 486,966.40 × 191,729.12
  4. Step 4: Simplify right side
    352,872.76x = 93,365,639,341.57
  5. Step 5: Solve for x
    x = 93,365,639,341.57/352,872.76
  6. Step 6: Final answer
    x = 264,587.27

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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.