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Finding the Fourth Proportional to 539,036.70, 806,999.85 and 476,828.70

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Solution

The fourth proportional to 539,036.70, 806,999.85 and 476,828.70 is: 713,867.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,036.70 : 806,999.85 = 476,828.70 : x
  2. Step 2: Convert to fraction form
    539,036.70/806,999.85 = 476,828.70/x
  3. Step 3: Cross multiply
    539,036.70x = 806,999.85 × 476,828.70
  4. Step 4: Simplify right side
    539,036.70x = 384,800,689,375.70
  5. Step 5: Solve for x
    x = 384,800,689,375.70/539,036.70
  6. Step 6: Final answer
    x = 713,867.33

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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.