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Finding the Fourth Proportional to 723,994.92, 995,570.05 and 628,335.54

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Solution

The fourth proportional to 723,994.92, 995,570.05 and 628,335.54 is: 864,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,994.92 : 995,570.05 = 628,335.54 : x
  2. Step 2: Convert to fraction form
    723,994.92/995,570.05 = 628,335.54/x
  3. Step 3: Cross multiply
    723,994.92x = 995,570.05 × 628,335.54
  4. Step 4: Simplify right side
    723,994.92x = 625,552,044,974.58
  5. Step 5: Solve for x
    x = 625,552,044,974.58/723,994.92
  6. Step 6: Final answer
    x = 864,028.22

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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.