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Finding the Fourth Proportional to 373,101.12, 514,641.60 and 305,216.64

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Solution

The fourth proportional to 373,101.12, 514,641.60 and 305,216.64 is: 421,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,101.12 : 514,641.60 = 305,216.64 : x
  2. Step 2: Convert to fraction form
    373,101.12/514,641.60 = 305,216.64/x
  3. Step 3: Cross multiply
    373,101.12x = 514,641.60 × 305,216.64
  4. Step 4: Simplify right side
    373,101.12x = 157,077,179,956.22
  5. Step 5: Solve for x
    x = 157,077,179,956.22/373,101.12
  6. Step 6: Final answer
    x = 421,004.31

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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.