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Finding the Fourth Proportional to 461,615.96, 637,136.30 and 270,690.86

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Solution

The fourth proportional to 461,615.96, 637,136.30 and 270,690.86 is: 373,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,615.96 : 637,136.30 = 270,690.86 : x
  2. Step 2: Convert to fraction form
    461,615.96/637,136.30 = 270,690.86/x
  3. Step 3: Cross multiply
    461,615.96x = 637,136.30 × 270,690.86
  4. Step 4: Simplify right side
    461,615.96x = 172,466,968,445.08
  5. Step 5: Solve for x
    x = 172,466,968,445.08/461,615.96
  6. Step 6: Final answer
    x = 373,615.70

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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.