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Finding the Fourth Proportional to 373,038.66, 514,872.66 and 220,019.64

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Solution

The fourth proportional to 373,038.66, 514,872.66 and 220,019.64 is: 303,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,038.66 : 514,872.66 = 220,019.64 : x
  2. Step 2: Convert to fraction form
    373,038.66/514,872.66 = 220,019.64/x
  3. Step 3: Cross multiply
    373,038.66x = 514,872.66 × 220,019.64
  4. Step 4: Simplify right side
    373,038.66x = 113,282,097,299.04
  5. Step 5: Solve for x
    x = 113,282,097,299.04/373,038.66
  6. Step 6: Final answer
    x = 303,673.88

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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.