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Finding the Fourth Proportional to 443,581.90, 612,148.92 and 252,596.05

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Solution

The fourth proportional to 443,581.90, 612,148.92 and 252,596.05 is: 348,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,581.90 : 612,148.92 = 252,596.05 : x
  2. Step 2: Convert to fraction form
    443,581.90/612,148.92 = 252,596.05/x
  3. Step 3: Cross multiply
    443,581.90x = 612,148.92 × 252,596.05
  4. Step 4: Simplify right side
    443,581.90x = 154,626,399,203.77
  5. Step 5: Solve for x
    x = 154,626,399,203.77/443,581.90
  6. Step 6: Final answer
    x = 348,585.91

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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.