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Finding the Fourth Proportional to 569,103.90, 851,812.65 and 403,215.90

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Solution

The fourth proportional to 569,103.90, 851,812.65 and 403,215.90 is: 603,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,103.90 : 851,812.65 = 403,215.90 : x
  2. Step 2: Convert to fraction form
    569,103.90/851,812.65 = 403,215.90/x
  3. Step 3: Cross multiply
    569,103.90x = 851,812.65 × 403,215.90
  4. Step 4: Simplify right side
    569,103.90x = 343,464,404,301.14
  5. Step 5: Solve for x
    x = 343,464,404,301.14/569,103.90
  6. Step 6: Final answer
    x = 603,517.92

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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.