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Finding the Fourth Proportional to 556,817.00, 768,407.94 and 302,168.18

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Solution

The fourth proportional to 556,817.00, 768,407.94 and 302,168.18 is: 416,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,817.00 : 768,407.94 = 302,168.18 : x
  2. Step 2: Convert to fraction form
    556,817.00/768,407.94 = 302,168.18/x
  3. Step 3: Cross multiply
    556,817.00x = 768,407.94 × 302,168.18
  4. Step 4: Simplify right side
    556,817.00x = 232,188,430,648.37
  5. Step 5: Solve for x
    x = 232,188,430,648.37/556,817.00
  6. Step 6: Final answer
    x = 416,992.36

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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.