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Finding the Fourth Proportional to 543,352.70, 814,251.45 and 400,079.90

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Solution

The fourth proportional to 543,352.70, 814,251.45 and 400,079.90 is: 599,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,352.70 : 814,251.45 = 400,079.90 : x
  2. Step 2: Convert to fraction form
    543,352.70/814,251.45 = 400,079.90/x
  3. Step 3: Cross multiply
    543,352.70x = 814,251.45 × 400,079.90
  4. Step 4: Simplify right side
    543,352.70x = 325,765,638,690.86
  5. Step 5: Solve for x
    x = 325,765,638,690.86/543,352.70
  6. Step 6: Final answer
    x = 599,547.29

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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.