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Finding the Fourth Proportional to 352,457.60, 486,378.48 and 191,309.24

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Solution

The fourth proportional to 352,457.60, 486,378.48 and 191,309.24 is: 263,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,457.60 : 486,378.48 = 191,309.24 : x
  2. Step 2: Convert to fraction form
    352,457.60/486,378.48 = 191,309.24/x
  3. Step 3: Cross multiply
    352,457.60x = 486,378.48 × 191,309.24
  4. Step 4: Simplify right side
    352,457.60x = 93,048,697,361.16
  5. Step 5: Solve for x
    x = 93,048,697,361.16/352,457.60
  6. Step 6: Final answer
    x = 263,999.69

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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.