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Finding the Fourth Proportional to 404,662.35, 558,434.15 and 223,374.39

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Solution

The fourth proportional to 404,662.35, 558,434.15 and 223,374.39 is: 308,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,662.35 : 558,434.15 = 223,374.39 : x
  2. Step 2: Convert to fraction form
    404,662.35/558,434.15 = 223,374.39/x
  3. Step 3: Cross multiply
    404,662.35x = 558,434.15 × 223,374.39
  4. Step 4: Simplify right side
    404,662.35x = 124,739,887,611.42
  5. Step 5: Solve for x
    x = 124,739,887,611.42/404,662.35
  6. Step 6: Final answer
    x = 308,256.72

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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.