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Finding the Fourth Proportional to 583,779.62, 805,605.18 and 329,131.10

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Solution

The fourth proportional to 583,779.62, 805,605.18 and 329,131.10 is: 454,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,779.62 : 805,605.18 = 329,131.10 : x
  2. Step 2: Convert to fraction form
    583,779.62/805,605.18 = 329,131.10/x
  3. Step 3: Cross multiply
    583,779.62x = 805,605.18 × 329,131.10
  4. Step 4: Simplify right side
    583,779.62x = 265,149,719,059.10
  5. Step 5: Solve for x
    x = 265,149,719,059.10/583,779.62
  6. Step 6: Final answer
    x = 454,194.89

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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.