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Finding the Fourth Proportional to 404,346.69, 557,996.85 and 223,069.90

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Solution

The fourth proportional to 404,346.69, 557,996.85 and 223,069.90 is: 307,835.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,346.69 : 557,996.85 = 223,069.90 : x
  2. Step 2: Convert to fraction form
    404,346.69/557,996.85 = 223,069.90/x
  3. Step 3: Cross multiply
    404,346.69x = 557,996.85 × 223,069.90
  4. Step 4: Simplify right side
    404,346.69x = 124,472,301,529.82
  5. Step 5: Solve for x
    x = 124,472,301,529.82/404,346.69
  6. Step 6: Final answer
    x = 307,835.59

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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.