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Finding the Fourth Proportional to 410,354.70, 615,748.79 and 291,181.74

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Solution

The fourth proportional to 410,354.70, 615,748.79 and 291,181.74 is: 436,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,354.70 : 615,748.79 = 291,181.74 : x
  2. Step 2: Convert to fraction form
    410,354.70/615,748.79 = 291,181.74/x
  3. Step 3: Cross multiply
    410,354.70x = 615,748.79 × 291,181.74
  4. Step 4: Simplify right side
    410,354.70x = 179,294,802,619.19
  5. Step 5: Solve for x
    x = 179,294,802,619.19/410,354.70
  6. Step 6: Final answer
    x = 436,926.40

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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.