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Finding the Fourth Proportional to 410,181.60, 615,272.40 and 372,783.90

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Solution

The fourth proportional to 410,181.60, 615,272.40 and 372,783.90 is: 559,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,181.60 : 615,272.40 = 372,783.90 : x
  2. Step 2: Convert to fraction form
    410,181.60/615,272.40 = 372,783.90/x
  3. Step 3: Cross multiply
    410,181.60x = 615,272.40 × 372,783.90
  4. Step 4: Simplify right side
    410,181.60x = 229,363,644,834.36
  5. Step 5: Solve for x
    x = 229,363,644,834.36/410,181.60
  6. Step 6: Final answer
    x = 559,175.85

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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.