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Finding the Fourth Proportional to 338,530.59, 507,518.73 and 169,847.28

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Solution

The fourth proportional to 338,530.59, 507,518.73 and 169,847.28 is: 254,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,530.59 : 507,518.73 = 169,847.28 : x
  2. Step 2: Convert to fraction form
    338,530.59/507,518.73 = 169,847.28/x
  3. Step 3: Cross multiply
    338,530.59x = 507,518.73 × 169,847.28
  4. Step 4: Simplify right side
    338,530.59x = 86,200,675,839.55
  5. Step 5: Solve for x
    x = 86,200,675,839.55/338,530.59
  6. Step 6: Final answer
    x = 254,631.87

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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.