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Finding the Fourth Proportional to 723,998.92, 995,575.56 and 628,339.56

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Solution

The fourth proportional to 723,998.92, 995,575.56 and 628,339.56 is: 864,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,998.92 : 995,575.56 = 628,339.56 : x
  2. Step 2: Convert to fraction form
    723,998.92/995,575.56 = 628,339.56/x
  3. Step 3: Cross multiply
    723,998.92x = 995,575.56 × 628,339.56
  4. Step 4: Simplify right side
    723,998.92x = 625,559,509,317.15
  5. Step 5: Solve for x
    x = 625,559,509,317.15/723,998.92
  6. Step 6: Final answer
    x = 864,033.76

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Double scale
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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.