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Finding the Fourth Proportional to 308,150.46, 425,250.45 and 180,828.18

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Solution

The fourth proportional to 308,150.46, 425,250.45 and 180,828.18 is: 249,544.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,150.46 : 425,250.45 = 180,828.18 : x
  2. Step 2: Convert to fraction form
    308,150.46/425,250.45 = 180,828.18/x
  3. Step 3: Cross multiply
    308,150.46x = 425,250.45 × 180,828.18
  4. Step 4: Simplify right side
    308,150.46x = 76,897,264,917.68
  5. Step 5: Solve for x
    x = 76,897,264,917.68/308,150.46
  6. Step 6: Final answer
    x = 249,544.54

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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.