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Finding the Fourth Proportional to 352,360.48, 486,257.78 and 191,215.53

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Solution

The fourth proportional to 352,360.48, 486,257.78 and 191,215.53 is: 263,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,360.48 : 486,257.78 = 191,215.53 : x
  2. Step 2: Convert to fraction form
    352,360.48/486,257.78 = 191,215.53/x
  3. Step 3: Cross multiply
    352,360.48x = 486,257.78 × 191,215.53
  4. Step 4: Simplify right side
    352,360.48x = 92,980,039,132.57
  5. Step 5: Solve for x
    x = 92,980,039,132.57/352,360.48
  6. Step 6: Final answer
    x = 263,877.60

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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.