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Finding the Fourth Proportional to 452,991.40, 679,487.10 and 404,002.60

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Solution

The fourth proportional to 452,991.40, 679,487.10 and 404,002.60 is: 606,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,991.40 : 679,487.10 = 404,002.60 : x
  2. Step 2: Convert to fraction form
    452,991.40/679,487.10 = 404,002.60/x
  3. Step 3: Cross multiply
    452,991.40x = 679,487.10 × 404,002.60
  4. Step 4: Simplify right side
    452,991.40x = 274,514,555,066.46
  5. Step 5: Solve for x
    x = 274,514,555,066.46/452,991.40
  6. Step 6: Final answer
    x = 606,003.90

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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.