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Finding the Fourth Proportional to 543,752.30, 815,628.45 and 411,041.90

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Solution

The fourth proportional to 543,752.30, 815,628.45 and 411,041.90 is: 616,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,752.30 : 815,628.45 = 411,041.90 : x
  2. Step 2: Convert to fraction form
    543,752.30/815,628.45 = 411,041.90/x
  3. Step 3: Cross multiply
    543,752.30x = 815,628.45 × 411,041.90
  4. Step 4: Simplify right side
    543,752.30x = 335,257,467,782.06
  5. Step 5: Solve for x
    x = 335,257,467,782.06/543,752.30
  6. Step 6: Final answer
    x = 616,562.85

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Similar ratio
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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.