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Finding the Fourth Proportional to 723,999.92, 995,576.94 and 628,340.56

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Solution

The fourth proportional to 723,999.92, 995,576.94 and 628,340.56 is: 864,035.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,999.92 : 995,576.94 = 628,340.56 : x
  2. Step 2: Convert to fraction form
    723,999.92/995,576.94 = 628,340.56/x
  3. Step 3: Cross multiply
    723,999.92x = 995,576.94 × 628,340.56
  4. Step 4: Simplify right side
    723,999.92x = 625,561,372,002.69
  5. Step 5: Solve for x
    x = 625,561,372,002.69/723,999.92
  6. Step 6: Final answer
    x = 864,035.14

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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.