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Finding the Fourth Proportional to 556,586.97, 768,091.95 and 301,939.98

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Solution

The fourth proportional to 556,586.97, 768,091.95 and 301,939.98 is: 416,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,586.97 : 768,091.95 = 301,939.98 : x
  2. Step 2: Convert to fraction form
    556,586.97/768,091.95 = 301,939.98/x
  3. Step 3: Cross multiply
    556,586.97x = 768,091.95 × 301,939.98
  4. Step 4: Simplify right side
    556,586.97x = 231,917,668,021.16
  5. Step 5: Solve for x
    x = 231,917,668,021.16/556,586.97
  6. Step 6: Final answer
    x = 416,678.22

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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.