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Finding the Fourth Proportional to 403,410.46, 604,891.66 and 187,032.72

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Solution

The fourth proportional to 403,410.46, 604,891.66 and 187,032.72 is: 280,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,410.46 : 604,891.66 = 187,032.72 : x
  2. Step 2: Convert to fraction form
    403,410.46/604,891.66 = 187,032.72/x
  3. Step 3: Cross multiply
    403,410.46x = 604,891.66 × 187,032.72
  4. Step 4: Simplify right side
    403,410.46x = 113,134,532,475.12
  5. Step 5: Solve for x
    x = 113,134,532,475.12/403,410.46
  6. Step 6: Final answer
    x = 280,445.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.