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Finding the Fourth Proportional to 488,662.20, 732,798.90 and 172,956.60

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Solution

The fourth proportional to 488,662.20, 732,798.90 and 172,956.60 is: 259,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,662.20 : 732,798.90 = 172,956.60 : x
  2. Step 2: Convert to fraction form
    488,662.20/732,798.90 = 172,956.60/x
  3. Step 3: Cross multiply
    488,662.20x = 732,798.90 × 172,956.60
  4. Step 4: Simplify right side
    488,662.20x = 126,742,406,227.74
  5. Step 5: Solve for x
    x = 126,742,406,227.74/488,662.20
  6. Step 6: Final answer
    x = 259,366.09

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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.