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Finding the Fourth Proportional to 318,220.62, 439,151.99 and 174,980.55

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Solution

The fourth proportional to 318,220.62, 439,151.99 and 174,980.55 is: 241,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,220.62 : 439,151.99 = 174,980.55 : x
  2. Step 2: Convert to fraction form
    318,220.62/439,151.99 = 174,980.55/x
  3. Step 3: Cross multiply
    318,220.62x = 439,151.99 × 174,980.55
  4. Step 4: Simplify right side
    318,220.62x = 76,843,056,743.79
  5. Step 5: Solve for x
    x = 76,843,056,743.79/318,220.62
  6. Step 6: Final answer
    x = 241,477.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.