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Finding the Fourth Proportional to 404,424.40, 558,104.10 and 223,147.60

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Solution

The fourth proportional to 404,424.40, 558,104.10 and 223,147.60 is: 307,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,424.40 : 558,104.10 = 223,147.60 : x
  2. Step 2: Convert to fraction form
    404,424.40/558,104.10 = 223,147.60/x
  3. Step 3: Cross multiply
    404,424.40x = 558,104.10 × 223,147.60
  4. Step 4: Simplify right side
    404,424.40x = 124,539,590,465.16
  5. Step 5: Solve for x
    x = 124,539,590,465.16/404,424.40
  6. Step 6: Final answer
    x = 307,942.82

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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.