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Finding the Fourth Proportional to 583,505.12, 805,251.30 and 325,379.54

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Solution

The fourth proportional to 583,505.12, 805,251.30 and 325,379.54 is: 449,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,505.12 : 805,251.30 = 325,379.54 : x
  2. Step 2: Convert to fraction form
    583,505.12/805,251.30 = 325,379.54/x
  3. Step 3: Cross multiply
    583,505.12x = 805,251.30 × 325,379.54
  4. Step 4: Simplify right side
    583,505.12x = 262,012,297,578.40
  5. Step 5: Solve for x
    x = 262,012,297,578.40/583,505.12
  6. Step 6: Final answer
    x = 449,031.70

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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.