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Finding the Fourth Proportional to 716,841.93, 989,234.25 and 394,545.11

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Solution

The fourth proportional to 716,841.93, 989,234.25 and 394,545.11 is: 544,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,841.93 : 989,234.25 = 394,545.11 : x
  2. Step 2: Convert to fraction form
    716,841.93/989,234.25 = 394,545.11/x
  3. Step 3: Cross multiply
    716,841.93x = 989,234.25 × 394,545.11
  4. Step 4: Simplify right side
    716,841.93x = 390,297,529,556.30
  5. Step 5: Solve for x
    x = 390,297,529,556.30/716,841.93
  6. Step 6: Final answer
    x = 544,468.05

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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.