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Finding the Fourth Proportional to 556,445.45, 767,896.08 and 301,796.66

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Solution

The fourth proportional to 556,445.45, 767,896.08 and 301,796.66 is: 416,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,445.45 : 767,896.08 = 301,796.66 : x
  2. Step 2: Convert to fraction form
    556,445.45/767,896.08 = 301,796.66/x
  3. Step 3: Cross multiply
    556,445.45x = 767,896.08 × 301,796.66
  4. Step 4: Simplify right side
    556,445.45x = 231,748,472,171.09
  5. Step 5: Solve for x
    x = 231,748,472,171.09/556,445.45
  6. Step 6: Final answer
    x = 416,480.13

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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.