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Finding the Fourth Proportional to 404,672.42, 558,478.86 and 223,419.26

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Solution

The fourth proportional to 404,672.42, 558,478.86 and 223,419.26 is: 308,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,672.42 : 558,478.86 = 223,419.26 : x
  2. Step 2: Convert to fraction form
    404,672.42/558,478.86 = 223,419.26/x
  3. Step 3: Cross multiply
    404,672.42x = 558,478.86 × 223,419.26
  4. Step 4: Simplify right side
    404,672.42x = 124,774,933,626.84
  5. Step 5: Solve for x
    x = 124,774,933,626.84/404,672.42
  6. Step 6: Final answer
    x = 308,335.65

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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.