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Finding the Fourth Proportional to 518,349.72, 715,562.76 and 365,512.44

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Solution

The fourth proportional to 518,349.72, 715,562.76 and 365,512.44 is: 504,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,349.72 : 715,562.76 = 365,512.44 : x
  2. Step 2: Convert to fraction form
    518,349.72/715,562.76 = 365,512.44/x
  3. Step 3: Cross multiply
    518,349.72x = 715,562.76 × 365,512.44
  4. Step 4: Simplify right side
    518,349.72x = 261,547,090,380.73
  5. Step 5: Solve for x
    x = 261,547,090,380.73/518,349.72
  6. Step 6: Final answer
    x = 504,576.51

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Double scale
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1.5x scale

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.