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Finding the Fourth Proportional to 295,341.40, 443,012.10 and 275,512.60

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Solution

The fourth proportional to 295,341.40, 443,012.10 and 275,512.60 is: 413,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,341.40 : 443,012.10 = 275,512.60 : x
  2. Step 2: Convert to fraction form
    295,341.40/443,012.10 = 275,512.60/x
  3. Step 3: Cross multiply
    295,341.40x = 443,012.10 × 275,512.60
  4. Step 4: Simplify right side
    295,341.40x = 122,055,415,502.46
  5. Step 5: Solve for x
    x = 122,055,415,502.46/295,341.40
  6. Step 6: Final answer
    x = 413,268.90

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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.