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Finding the Fourth Proportional to 352,416.60, 486,322.53 and 191,268.42

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Solution

The fourth proportional to 352,416.60, 486,322.53 and 191,268.42 is: 263,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,416.60 : 486,322.53 = 191,268.42 : x
  2. Step 2: Convert to fraction form
    352,416.60/486,322.53 = 191,268.42/x
  3. Step 3: Cross multiply
    352,416.60x = 486,322.53 × 191,268.42
  4. Step 4: Simplify right side
    352,416.60x = 93,018,141,923.50
  5. Step 5: Solve for x
    x = 93,018,141,923.50/352,416.60
  6. Step 6: Final answer
    x = 263,943.70

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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.