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Finding the Fourth Proportional to 352,436.88, 486,349.83 and 191,288.46

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Solution

The fourth proportional to 352,436.88, 486,349.83 and 191,288.46 is: 263,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,436.88 : 486,349.83 = 191,288.46 : x
  2. Step 2: Convert to fraction form
    352,436.88/486,349.83 = 191,288.46/x
  3. Step 3: Cross multiply
    352,436.88x = 486,349.83 × 191,288.46
  4. Step 4: Simplify right side
    352,436.88x = 93,033,110,001.96
  5. Step 5: Solve for x
    x = 93,033,110,001.96/352,436.88
  6. Step 6: Final answer
    x = 263,970.98

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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.