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Finding the Fourth Proportional to 325,686.60, 449,446.80 and 180,501.68

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Solution

The fourth proportional to 325,686.60, 449,446.80 and 180,501.68 is: 249,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,686.60 : 449,446.80 = 180,501.68 : x
  2. Step 2: Convert to fraction form
    325,686.60/449,446.80 = 180,501.68/x
  3. Step 3: Cross multiply
    325,686.60x = 449,446.80 × 180,501.68
  4. Step 4: Simplify right side
    325,686.60x = 81,125,902,470.62
  5. Step 5: Solve for x
    x = 81,125,902,470.62/325,686.60
  6. Step 6: Final answer
    x = 249,091.93

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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.