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Finding the Fourth Proportional to 352,436.77, 486,349.71 and 191,288.37

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Solution

The fourth proportional to 352,436.77, 486,349.71 and 191,288.37 is: 263,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,436.77 : 486,349.71 = 191,288.37 : x
  2. Step 2: Convert to fraction form
    352,436.77/486,349.71 = 191,288.37/x
  3. Step 3: Cross multiply
    352,436.77x = 486,349.71 × 191,288.37
  4. Step 4: Simplify right side
    352,436.77x = 93,033,043,275.87
  5. Step 5: Solve for x
    x = 93,033,043,275.87/352,436.77
  6. Step 6: Final answer
    x = 263,970.88

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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.