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Finding the Fourth Proportional to 373,173.64, 514,984.74 and 203,407.40

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Solution

The fourth proportional to 373,173.64, 514,984.74 and 203,407.40 is: 280,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,173.64 : 514,984.74 = 203,407.40 : x
  2. Step 2: Convert to fraction form
    373,173.64/514,984.74 = 203,407.40/x
  3. Step 3: Cross multiply
    373,173.64x = 514,984.74 × 203,407.40
  4. Step 4: Simplify right side
    373,173.64x = 104,751,707,003.08
  5. Step 5: Solve for x
    x = 104,751,707,003.08/373,173.64
  6. Step 6: Final answer
    x = 280,705.00

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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.