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Finding the Fourth Proportional to 543,752.10, 814,015.35 and 404,129.70

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Solution

The fourth proportional to 543,752.10, 814,015.35 and 404,129.70 is: 604,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,752.10 : 814,015.35 = 404,129.70 : x
  2. Step 2: Convert to fraction form
    543,752.10/814,015.35 = 404,129.70/x
  3. Step 3: Cross multiply
    543,752.10x = 814,015.35 × 404,129.70
  4. Step 4: Simplify right side
    543,752.10x = 328,967,779,190.90
  5. Step 5: Solve for x
    x = 328,967,779,190.90/543,752.10
  6. Step 6: Final answer
    x = 604,995.88

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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.