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Finding the Fourth Proportional to 556,605.66, 768,118.02 and 301,958.64

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Solution

The fourth proportional to 556,605.66, 768,118.02 and 301,958.64 is: 416,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,605.66 : 768,118.02 = 301,958.64 : x
  2. Step 2: Convert to fraction form
    556,605.66/768,118.02 = 301,958.64/x
  3. Step 3: Cross multiply
    556,605.66x = 768,118.02 × 301,958.64
  4. Step 4: Simplify right side
    556,605.66x = 231,939,872,678.69
  5. Step 5: Solve for x
    x = 231,939,872,678.69/556,605.66
  6. Step 6: Final answer
    x = 416,704.12

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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.