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Finding the Fourth Proportional to 556,357.12, 767,765.56 and 301,706.96

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Solution

The fourth proportional to 556,357.12, 767,765.56 and 301,706.96 is: 416,351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,357.12 : 767,765.56 = 301,706.96 : x
  2. Step 2: Convert to fraction form
    556,357.12/767,765.56 = 301,706.96/x
  3. Step 3: Cross multiply
    556,357.12x = 767,765.56 × 301,706.96
  4. Step 4: Simplify right side
    556,357.12x = 231,640,213,100.30
  5. Step 5: Solve for x
    x = 231,640,213,100.30/556,357.12
  6. Step 6: Final answer
    x = 416,351.66

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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.