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Finding the Fourth Proportional to 404,530.86, 558,265.99 and 220,779.46

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Solution

The fourth proportional to 404,530.86, 558,265.99 and 220,779.46 is: 304,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,530.86 : 558,265.99 = 220,779.46 : x
  2. Step 2: Convert to fraction form
    404,530.86/558,265.99 = 220,779.46/x
  3. Step 3: Cross multiply
    404,530.86x = 558,265.99 × 220,779.46
  4. Step 4: Simplify right side
    404,530.86x = 123,253,663,808.57
  5. Step 5: Solve for x
    x = 123,253,663,808.57/404,530.86
  6. Step 6: Final answer
    x = 304,682.97

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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.