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Finding the Fourth Proportional to 557,291.36, 769,297.50 and 376,248.52

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Solution

The fourth proportional to 557,291.36, 769,297.50 and 376,248.52 is: 519,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,291.36 : 769,297.50 = 376,248.52 : x
  2. Step 2: Convert to fraction form
    557,291.36/769,297.50 = 376,248.52/x
  3. Step 3: Cross multiply
    557,291.36x = 769,297.50 × 376,248.52
  4. Step 4: Simplify right side
    557,291.36x = 289,447,045,814.70
  5. Step 5: Solve for x
    x = 289,447,045,814.70/557,291.36
  6. Step 6: Final answer
    x = 519,381.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.