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Finding the Fourth Proportional to 404,646.48, 558,412.17 and 223,358.46

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Solution

The fourth proportional to 404,646.48, 558,412.17 and 223,358.46 is: 308,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,646.48 : 558,412.17 = 223,358.46 : x
  2. Step 2: Convert to fraction form
    404,646.48/558,412.17 = 223,358.46/x
  3. Step 3: Cross multiply
    404,646.48x = 558,412.17 × 223,358.46
  4. Step 4: Simplify right side
    404,646.48x = 124,726,082,336.46
  5. Step 5: Solve for x
    x = 124,726,082,336.46/404,646.48
  6. Step 6: Final answer
    x = 308,234.69

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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.