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Finding the Fourth Proportional to 724,014.45, 995,596.92 and 628,355.07

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Solution

The fourth proportional to 724,014.45, 995,596.92 and 628,355.07 is: 864,055.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,014.45 : 995,596.92 = 628,355.07 : x
  2. Step 2: Convert to fraction form
    724,014.45/995,596.92 = 628,355.07/x
  3. Step 3: Cross multiply
    724,014.45x = 995,596.92 × 628,355.07
  4. Step 4: Simplify right side
    724,014.45x = 625,588,372,358.38
  5. Step 5: Solve for x
    x = 625,588,372,358.38/724,014.45
  6. Step 6: Final answer
    x = 864,055.09

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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.