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Finding the Fourth Proportional to 622,136.90, 932,514.15 and 341,855.30

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Solution

The fourth proportional to 622,136.90, 932,514.15 and 341,855.30 is: 512,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,136.90 : 932,514.15 = 341,855.30 : x
  2. Step 2: Convert to fraction form
    622,136.90/932,514.15 = 341,855.30/x
  3. Step 3: Cross multiply
    622,136.90x = 932,514.15 × 341,855.30
  4. Step 4: Simplify right side
    622,136.90x = 318,784,904,502.50
  5. Step 5: Solve for x
    x = 318,784,904,502.50/622,136.90
  6. Step 6: Final answer
    x = 512,403.15

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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.