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Finding the Fourth Proportional to 719,588.68, 993,006.66 and 397,292.20

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Solution

The fourth proportional to 719,588.68, 993,006.66 and 397,292.20 is: 548,249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,588.68 : 993,006.66 = 397,292.20 : x
  2. Step 2: Convert to fraction form
    719,588.68/993,006.66 = 397,292.20/x
  3. Step 3: Cross multiply
    719,588.68x = 993,006.66 × 397,292.20
  4. Step 4: Simplify right side
    719,588.68x = 394,513,800,566.05
  5. Step 5: Solve for x
    x = 394,513,800,566.05/719,588.68
  6. Step 6: Final answer
    x = 548,249.04

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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.