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Finding the Fourth Proportional to 404,645.48, 558,410.80 and 223,357.46

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Solution

The fourth proportional to 404,645.48, 558,410.80 and 223,357.46 is: 308,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,645.48 : 558,410.80 = 223,357.46 : x
  2. Step 2: Convert to fraction form
    404,645.48/558,410.80 = 223,357.46/x
  3. Step 3: Cross multiply
    404,645.48x = 558,410.80 × 223,357.46
  4. Step 4: Simplify right side
    404,645.48x = 124,725,217,924.57
  5. Step 5: Solve for x
    x = 124,725,217,924.57/404,645.48
  6. Step 6: Final answer
    x = 308,233.32

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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.