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Finding the Fourth Proportional to 294,584.01, 406,543.36 and 221,858.63

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Solution

The fourth proportional to 294,584.01, 406,543.36 and 221,858.63 is: 306,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,584.01 : 406,543.36 = 221,858.63 : x
  2. Step 2: Convert to fraction form
    294,584.01/406,543.36 = 221,858.63/x
  3. Step 3: Cross multiply
    294,584.01x = 406,543.36 × 221,858.63
  4. Step 4: Simplify right side
    294,584.01x = 90,195,153,346.91
  5. Step 5: Solve for x
    x = 90,195,153,346.91/294,584.01
  6. Step 6: Final answer
    x = 306,178.04

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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.