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Finding the Fourth Proportional to 556,321.56, 767,723.04 and 301,672.32

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Solution

The fourth proportional to 556,321.56, 767,723.04 and 301,672.32 is: 416,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,321.56 : 767,723.04 = 301,672.32 : x
  2. Step 2: Convert to fraction form
    556,321.56/767,723.04 = 301,672.32/x
  3. Step 3: Cross multiply
    556,321.56x = 767,723.04 × 301,672.32
  4. Step 4: Simplify right side
    556,321.56x = 231,600,790,594.25
  5. Step 5: Solve for x
    x = 231,600,790,594.25/556,321.56
  6. Step 6: Final answer
    x = 416,307.42

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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.