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Finding the Fourth Proportional to 279,553.60, 419,330.40 and 190,980.10

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Solution

The fourth proportional to 279,553.60, 419,330.40 and 190,980.10 is: 286,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,553.60 : 419,330.40 = 190,980.10 : x
  2. Step 2: Convert to fraction form
    279,553.60/419,330.40 = 190,980.10/x
  3. Step 3: Cross multiply
    279,553.60x = 419,330.40 × 190,980.10
  4. Step 4: Simplify right side
    279,553.60x = 80,083,761,725.04
  5. Step 5: Solve for x
    x = 80,083,761,725.04/279,553.60
  6. Step 6: Final answer
    x = 286,470.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.