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Finding the Fourth Proportional to 404,423.94, 558,103.42 and 223,147.14

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Solution

The fourth proportional to 404,423.94, 558,103.42 and 223,147.14 is: 307,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,423.94 : 558,103.42 = 223,147.14 : x
  2. Step 2: Convert to fraction form
    404,423.94/558,103.42 = 223,147.14/x
  3. Step 3: Cross multiply
    404,423.94x = 558,103.42 × 223,147.14
  4. Step 4: Simplify right side
    404,423.94x = 124,539,181,997.22
  5. Step 5: Solve for x
    x = 124,539,181,997.22/404,423.94
  6. Step 6: Final answer
    x = 307,942.16

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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.