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Finding the Fourth Proportional to 352,445.80, 486,375.62 and 191,300.84

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Solution

The fourth proportional to 352,445.80, 486,375.62 and 191,300.84 is: 263,995.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,445.80 : 486,375.62 = 191,300.84 : x
  2. Step 2: Convert to fraction form
    352,445.80/486,375.62 = 191,300.84/x
  3. Step 3: Cross multiply
    352,445.80x = 486,375.62 × 191,300.84
  4. Step 4: Simplify right side
    352,445.80x = 93,044,064,661.52
  5. Step 5: Solve for x
    x = 93,044,064,661.52/352,445.80
  6. Step 6: Final answer
    x = 263,995.38

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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.