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Finding the Fourth Proportional to 524,042.80, 722,446.80 and 443,145.76

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Solution

The fourth proportional to 524,042.80, 722,446.80 and 443,145.76 is: 610,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,042.80 : 722,446.80 = 443,145.76 : x
  2. Step 2: Convert to fraction form
    524,042.80/722,446.80 = 443,145.76/x
  3. Step 3: Cross multiply
    524,042.80x = 722,446.80 × 443,145.76
  4. Step 4: Simplify right side
    524,042.80x = 320,149,236,245.57
  5. Step 5: Solve for x
    x = 320,149,236,245.57/524,042.80
  6. Step 6: Final answer
    x = 610,921.93

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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.