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Finding the Fourth Proportional to 404,426.40, 558,106.86 and 223,149.60

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Solution

The fourth proportional to 404,426.40, 558,106.86 and 223,149.60 is: 307,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,426.40 : 558,106.86 = 223,149.60 : x
  2. Step 2: Convert to fraction form
    404,426.40/558,106.86 = 223,149.60/x
  3. Step 3: Cross multiply
    404,426.40x = 558,106.86 × 223,149.60
  4. Step 4: Simplify right side
    404,426.40x = 124,541,322,566.26
  5. Step 5: Solve for x
    x = 124,541,322,566.26/404,426.40
  6. Step 6: Final answer
    x = 307,945.58

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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.