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Finding the Fourth Proportional to 410,053.60, 615,080.40 and 251,768.80

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Solution

The fourth proportional to 410,053.60, 615,080.40 and 251,768.80 is: 377,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,053.60 : 615,080.40 = 251,768.80 : x
  2. Step 2: Convert to fraction form
    410,053.60/615,080.40 = 251,768.80/x
  3. Step 3: Cross multiply
    410,053.60x = 615,080.40 × 251,768.80
  4. Step 4: Simplify right side
    410,053.60x = 154,858,054,211.52
  5. Step 5: Solve for x
    x = 154,858,054,211.52/410,053.60
  6. Step 6: Final answer
    x = 377,653.20

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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.